According to my 1923 Remington Arms Co., Inc. catalogue No. 107, the No. 17A "Standard" Grade had a plain pistol grip stock and a ringed forearm. The No. 17B "Special" Grade had a checkered stock and forearm, and would be made to customers dimensions for no extra charge. Higher grades were the No. 17D "Tournament" Grade, No. 17E "Expert" Grade and No. 17F "Premier" Grade. By the 1932/3 catalogue the Model 17A is shown with a checkered stock and forearm, just like the new Model 31A.