At the Reno Show this weekend I observed (unfortunately my pictures were blurred) a M1879, Serial #9536 (no suffix) with a crown over Spandau stamping on the usual frame location. It had the Prussian proof on the barrel (identical to figure 13.2, page 230 in Heinrich's book). The trigger and hammer were blued and the entire pistol looked reblued with a dull, almost Perkerized finish. No buffing was done, however. I have never seen the Spandau stamping before and cannot find one in Heinrich Harder's excellent book. Is this original? Is this a Spandau rework? Would like to hear comments.