Their American Arms Co. No. 6 Knickerbocker was H&D Folsom Arms Co's entry-level double in their Catalogue No. 18. Just after WW-I it had a list price of $30 when their Baker Batavia Leader had a list price of $48. By the next H&D Folsom Arms Co. catalogue I have, No. 23, the The American Gun Co. had been replace by Crescent Fire Arms Co. and the gun was the No. 6 "Peerless" (The Old "Knickerbocker" Improved) and had a list price of $24.50. In the same cataqlogue the Batavia Leader was down to $35. In addition to H&D Folsoms own guns, this catalogue included lots of American guns and had the NID Model Ithaca, so must be at least 1926.
