Jayadvaita Swami himself confirms that Bhagavad Gita is established,
now what is the need to revise it
A very important conversation where Jayadvaita Swami states that establishment of BG is done by Srila Prabhupada.
Srila Prabhupāda: So this is the position. The whole Vṛndāvana is full of Māyāvādīs. We have to be very, very cautious and careful. I was there. That Brahmānanda protested against that Aurobindo. And then “Don’t speak of Gītā.”

Tamāla Kṛṣṇa: Yes, that’s what they told him.Jayādvaita: They shouldn’t speak of Gītā. They should speak of whatever other thing they want.
Tamāla Kṛṣṇa: Then why call it Gītā-pratiṣṭhāna?
Jayādvaita: That’s Prabhupāda’s promise. He’s establishing Bhagavad-gītā.
Srila Prabhupāda: Eh?
Jayādvaita: The actual establishment of Bhagavad-gītā is being done by Your Divine Grace. They should admit that, “We have our philosophy, but as far as Bhagavad-gītā goes, Śrīla Prabhupāda is establishing it all over the world. We have something else, our own idea.” They can say that.
Srila Prabhupāda: Now find out the way how to stop this class of men speaking in our halls.[Room Conversation 1-VRNDAVAN – November 03, 1977 ]
This shows that the BG is already potent enough and its establishment is already done, so there is no need for its editing.
This is a solid proof that shows the editors themselves knew that 72 edition was the only original established edition. 

Original Delhi Srimad-Bhagavatam Scanned Books
Hare Krishna, all glories to Srila Prabhupada. Please find below the Google drive link for Delhi Srimad Bhagvatam (Canto 1) scanned copies(1962-65 Editions).
Link:https://drive.google.com/folderview?id=1SpTYeByncIaGi_j1xbjP2vuh8Lefie9h
——

Sri Advaita acarya avirbhava tithi [appearance day]Srila Prabhupada glorifies Sri Advaita acarya
compiled by Yasoda nandana dasa

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“Awaiting that Disaster”

Srila Prabhupada Predicts Doomsday

By Narasimha das

Like death itself, no one likes to talk about nuclear war. We prefer to avoid such talk. But although we tend to ignore the possibility of nuclear holocaust, that doesn’t make the problem go away. As death is certain, war is certain. It is a direct result of wholesale animal slaughter and other vicious karmic reactions. In a nuclear-armed world, nuclear war is certain.

“You are maintaining so many slaughterhouses, and when it will be mature [karmic reactions], there will be war, the wholesale murder. Finished. One atom bomb—finished…  Wait for accumulation of your sinful activities, and there will be war. And America will drop the atom bomb, and Russia will be finished. Both will be finished.” (Lecture, SB. 6.1.32, Honolulu, May 31, 1976)

“Well, anyway, they [nuclear weapons] must be used. There is no doubt about it. Therefore, we can say there will be war. It is no astrology; it is natural conclusion.” (Morning Walk, July 18, 1975, San Francisco)

• ayane viṣuve kuryādvyatīpāte dina-kṣayecandrādityoparāge cadvādaśyāṁ śravaṇeṣu catṛtīyāyāṁ śukla-pakṣenavamyām atha kārtikecatasṛṣv apy aṣṭakāsuhemante śiśire tathāmāghe ca sita-saptamyāṁmaghā-rākā-samāgamerākayā cānumatyā camāsarkṣāṇi yutāny apidvādaśyām anurādhā syācchravaṇas tisra uttarāḥtisṛṣv ekādaśī vāsujanmarkṣa-śroṇa-yoga-yuk
• SYNONYMS
• ayane—on the day when the sun begins to move north, or Makara-saṅkrānti, and on the day when the sun begins to move south, or Karkaṭa-saṅkrānti; viṣuve—on the Meṣa-saṅkrānti and on the Tulā-saṅkrānti; kuryāt—one should perform; vyatīpāte—in the yoga named Vyatīpāta; dina–kṣaye—on that day in which three tithis are combined; candra–āditya–uparāge—at the time of the eclipse of either the moon or the sun; ca—and also; dvādaśyām śravaṇeṣu—on the twelfth lunar day and in the nakṣatra named Śravaṇa; ca—and; tṛtīyāyām—on the Akṣaya–tṛtīyā day; śukla–pakṣe—in the bright fortnight of the month; navamyām—on the ninth lunar day; atha—also; kārtike—in the month of Kārtika (October–November); catasṛṣu—on the four; api—also; aṣṭakāsu—on the Aṣṭakās; hemante—before the winter season; śiśire—in the winter season; tathā—and also; māghe—in the month of Māgha (January–February); ca—and; sita–saptamyām—on the seventh lunar day of the bright fortnight; maghā–rākā–samāgame—in the conjunction of Maghā–nakṣatra and the full-moon day; rākayā—with a day of the completely full moon; ca—and; anumatyā—with a full-moon day when the moon is slightly less than completely full; ca—and; māsa–ṛkṣāṇi—the nakṣatras that are the sources of the names of the various months; yutāni—are conjoined; api—also; dvādaśyām—on the twelfth lunar day; anurādhā—the nakṣatra named Anurādhā; syāt—may occur; śravaṇaḥ—the nakṣatra named Śravaṇa; tisraḥ—the three (nakṣatras); uttarāḥ—the nakṣatras named Uttarā (Uttara–phalgunī, Uttarāṣāḍhā and Uttara-bhādrapadā); tisṛṣu—on three; ekādaśī—the eleventh lunar day; vā—or; āsu—on these; janma–ṛkṣa—of one’s own janma–nakṣatra, or birth star; śroṇa—of Śravaṇa-nakṣatra; yoga—by a conjunction; yuk—having.
• 
  TRANSLATION
• 
  One should perform the śrāddha ceremony on the Makara-saṅkrānti [the day when the sun begins to move north] or on the Karkaṭa-saṅkrānti [the day when the sun begins to move south]. One should also perform this ceremony on the Meṣa-saṅkrānti day and the Tulā-saṅkrānti day, in the yoga named Vyatīpāta, on that day in which three lunar tithis are conjoined, during an eclipse of either the moon or the sun, on the twelfth lunar day, and in the Śravaṇa-nakṣatra. One should perform this ceremony on the Akṣaya–tṛtīyā day, on the ninth lunar day of the bright fortnight of the month of Kārtika, on the four aṣṭakās in the winter season and cool season, on the seventh lunar day of the bright fortnight of the month of Māgha, during the conjunction of Maghā–nakṣatra and the full-moon day, and on the days when the moon is completely full, or not quite completely full, when these days are conjoined with the nakṣatras from which the names of certain months are derived. One should also perform the śrāddha ceremony on the twelfth lunar day when it is in conjunction with any of the nakṣatras named Anurādhā, Śravaṇa, Uttara–phalgunī, Uttarāṣāḍhā or Uttara-bhādrapadā. Again, one should perform this ceremony when the eleventh lunar day is in conjunction with either Uttara–phalgunī, Uttarāṣāḍhā or Uttara-bhādrapadā. Finally, one should perform this ceremony on days conjoined with one’s own birth star [janma–nakṣatra] or with Śravaṇa-nakṣatra.
• PURPORT
• The word ayana means “path” or “going.” The six months when the sun moves toward the north are called uttarāyaṇa, or the northern path, and the six months when it moves south are called dakṣiṇāyana, or the southern path. These are mentioned in Bhagavad-gītā (8.24–25). The first day when the sun begins to move north and enter the zodiacal sign of Capricorn is called Makara-saṅkrānti, and the first day when the sun begins to move south and enter the sign of Cancer is called Karkaṭa-saṅkrānti. On these two days of the year, one should perform the śrāddha ceremony.
• Viṣuva, or Viṣuva-saṅkrānti, means Meṣa-saṅkrānti, or the day on which the sun enters the sign Aries. Tulā-saṅkrānti is the day on which the sun enters the sign Libra. Both of these days occur only once within a year. The word yoga refers to a certain relationship between the sun and moon as they move in the sky. There are twenty-seven different degrees of yoga, of which the seventeenth is called Vyatīpāta. On the day when this occurs, one should perform the śrāddha ceremony. A tithi, or lunar day, consists of the distance between the longitude of the sun and that of the moon. Sometimes a tithi is less than twenty-four hours. When it starts after sunrise on a certain day and ends before the sunrise of the following day, the previous tithi and the following tithi both “touch” the twenty-four-hour day between the sunrises. This is called tryaha-sparśa, or a day touched by some portion of three tithis.Śrīla Jīva Gosvāmī has given quotations from many śāstras stating that the śrāddha ceremony of oblations to the forefathers should not be performed on Ekādaśī tithi. When the tithi of the death anniversary falls on the Ekādaśī day, the śrāddha ceremony should be held not on Ekādaśī but on the next day, or dvādaśī. In the Brahma-vaivarta Purāṇa it is said:ye kurvanti mahīpāla
  śrāddhaṁ caikādaśi-dine
  trayas te narakaṁ yānti
  dātā bhoktā ca prerakaḥ
• If one performs the śrāddha ceremony of oblations to the forefathers on the Ekādaśī tithi, then the performer, the forefathers for whom the śrāddha is observed, and the purohita, or the family priest who encourages the ceremony, all go to hell.Link to this page: https://prabhupadabooks.com/sb/7/14/20-23

Beautiful advertisements of Bhagavad Gita As It Is 1972 Macmillan Edition in BTG Magazines
Hare Krishna, below are some amazingadvertisements for the Original Macmillan Bhagavad Gita As It Is when it was released in 1972. 

They are taken from BTG magazines. 

Demigods on Earth?

by Narasimha das

We were reading this morning in Srimad-Bhagavatam class Seventh Canto, Chapter 22, verses 11 through 16. In this section of Bhagavatam the importance of Brahminical culture is especially stressed, but it also mentions the importance of ksyatriyas and cow protection, and true vaisyas to protect the cows and land. Human society is in such a degraded and fearful condition now that even devotees seem to have become affected my fear, maliciousness, bickering, and gross materialism. Most devotees seem reluctant to cooperate on any level for genuine sankirtana or varnashrama projects. Most seem to have no clear idea that Srila Prabhupada is the Jagat Guru for everyone in this age. And the people in general blindly follow blind leaders on the networks of paths leading to hellish conditions in this life and the next. Few people believe in the laws or karma or life after death. Thus, mass destruction on a global scale seems likely soon.