In response to Saul Teichman's suggestion of an update to Gengerke's list of U.S. auction catalogs -

FRED LAKE: "As far as I know Martin Gengerke is still planning to produce a volume 9 of his "Numismatic Auction Catalogs" listings.

DENIS LORING: "Great idea, if and only if someone is willing to take ownership of the project and commit to seeing it through to completion (and, of course, if Martin agrees)."

MICHAEL BERKMAN: "I have already compiled a list of 20th Century auction sales for my own use and I would not mind expanding it as a replacement to Gengerke. I would welcome any participation from others who would like to add to it, as it primarily covers the more recent auctionhouses (e.g. Bowers, Kagin's, Paramount, Stack's Superior, etc). Unlike Gengerke, it gives occasional notes as to the content of sale and, when applicable, the different bindings and special editions."