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The catalogue found in the USGS library contained some additional photos which are not in the official catalogue. https://archive.usgs.gov/archive/sites/www.usgs.gov/blogs/features/usgs_top_story/tracking-the-story-of-the-russian-crown-jewels/index.html The video is worth watching.

GIA has put their copy of the official catalogue on Archive.org https://archive.org/details/RussiasTreasureOfDiamondsAndPreciousStones/page/n1

Another GIA site which may help to explain why the catalogue was withdrawn from circulation, even though some are known to still exist and some of the jewels were sold. https://www.gia.edu/gia-news-research/rare-catalog-chronicles-russias-regalia-crown-jewels

This is a very interesting site on the sale of some jewels etc http://www.palagems.com/russian-crown-jewels/