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AUCTION HIGHLIGHTS - Antique Trader, May 2018, p.52
Tag-sale Batman comic book soars to $53,675 LYNBROOK, N.Y. - A copy of Detective Comics #29 (JuIy 1939), bought by the consignor at a tag sale for $20, gaveled for $53,675 at a two-day auction held Feb. 14-15 by Philip Weiss Auctions. The comic book, graded VGi VG-, was an early Batman cover that featured the first appearance of Doctor Death.