The web exclusive that follows is an extension of All Over the Map, originally published in the July 2008 issue of Art+Auction.

America’s regional auction houses are seeing record profits. This is partly due to online sales, whose growth is propelled by international bidders attracted by the weak dollar. But when you look at the range of the material offered at the venues listed below—Fabergé cigarette cases, turn-of-the-century carousel figures, Cleveland School paintings—it’s clear that the variety and the promise of hidden gems are what make these establishments attractive to connoisseurs. Here, Art+Auction expands on its July 2008 feature with a state-by-state guide to notable houses, complete with links to their web sites and a taste of the top lots, both past and future.