Nichiren teaches and Noel responds:

 "Answer: First, with regard to the object of devotion, one should inscribe the eight volumes of the Lotus Sutra, or one volume, or one chapter, or simply the daimoku, or title, of the sutra, and make that the object of devotion, as is indicated in the “Teacher of the Law” and “Supernatural Powers” chapters of the sutra. And those persons who are able to do so further should write out the names of the Thus Come One Shakyamuni and the Buddha Many Treasures, or fashion images of them, and place these on the left and right of the Lotus Sutra. And if they are further able to do so, they should fashion images or write out the names of the Buddhas of the ten directions and the bodhisattva Universal Worthy and the others." -- On Reciting the Daimoku of the Lotus Sutra, considered by Nikko as one of the Ten Major Writings of Nichiren [Sho Hokke Daimoku Sho]

Noel responds:

This is what I think the authentic Gosho 'persecutions falling a sage' that Nichiren wrote at Minobu on October 1 of the second year of Kōan (1279) is talking about when he said that he fulfilled the purpose of his advent. I believe it started on the second month of the second year of Kōan (1279) the same year when he inscribed the 60th Gohonzon to Nichimoku, Nikko's disciple

If you look at the charts of the progression of the Gohonzon from number 1- 60 there was a significant change at number 60 of 123 Gohonzons in this Japanese chart.

http://homepage3.nifty.com/juhoukai/mandara/mandaraitiran.html

[none of Nichiren Shoshu's Gohonzons are on this list],

This was the first time Devadatta appeared in the Gohonzon on the second month of the second year of Kōan (1279). The true presentation of the oneness of good and evil is now complete and ready for transformation by Myoho Renge Kyo

Nichiren Daishonin wrote this letter 'persecutions falling a sage' at Minobu on October 1 of the second year of Kōan (1279)

The Nichiren Shoshu claim that on October 12, of the second year of Kōan (1279) Nichiren Shonin inscribed the Dai-Gohonzon in which he the fulfilled the purpose of his advent

Nichiren fulfilled the purpose of his advent was about 7 months before the so called Dai Gohonzon was inscribed that started on the second month of the second year of Kōan (1279) when he inscribed the 1st non suspicious authentic complete ten world Gohonzon

Since Nichiren Shoshu don't display their Gohonzon's we can't really tell if no. 60 is the first authentic complete ten world Gohonzon but if we lack the evidence of their existence of their Gohonzon's like their Dai Gohonzon how can we trust them

Even if they have authentic complete ten world Gohonzon's the purpose of Nichiren's advent was to inscribe a complete ten world Gohonzon's to transform the suffering that the negative life states of the ten worlds create in our lives and all sentient and insentient beings of this world and over to worlds to come, and no individual or sect has the right to create a monopoly on that for their personal gain