What is the most famous collection of US Proof Gold (pre 1933 gold) and .....................

................. how many of the coins in the collection were Cameo proofs?
Cameo proof gold,......................... yummy.
Cameo proof gold,......................... yummy.
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As for cameos, I don't know. I doubt that either one of those collectors thought to make a special effort to acquire cameos.
Doggedly collecting coins of the Central American Republic.
Visit the Society of US Pattern Collectors at USPatterns.com.
The Bringhurst collection was dispersed by his daughter following his death and was never accorded the fame of other, nearly-complete collections that were auctioned.
[Source: unpublished research manuscript by Jeff Reichenberger. Verified by the present writer.]