| Underwood & Underwood 8109 A Russian earth mine exploding near base of Antzushan, 600 lbs. of powder, Port Arthur (Detail) n.d. Stereocard Jefferson Stereoptics Courtesy of John Saddy (Auction, Tues. May 23rd & Thurs. May 25th, 2006, # 06-2, Lot 681) LL/11881
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