Actually, the Remington Arms Co. catalogue text for the A-/AE-/AR-/AER/AO-/AEO-Grades states "half or full pistol grip" from the 1899 catalogue on through to the end. The 1908, 1908-09 and the 1909 Remington Arms Co. catalogues picture a straight grip gun for the AO-/AEO-Grade?!? I'm sure that over the last 55 years or so I've seen hundreds of A quality Remington Hammerless Doubles with half-pistol grip stocks for every one I've seen with a believed to be original capped full pistol or straight grip stock, but they do exist.