Found them mentioned as a distributor of baseball equipment. And this...
"Parker Brothers VHE Grade 28-gauge double serial number 156301. Includes a letter from the Parker Gun Collectors Association. According to the letter this fine collectible was ordered on December 1, 1910 and shipped to Tufts Lyon Arms Company in Los Angeles, CA for C.W. Gates."
Appears to me that it was a sporting goods store. That leads me to guess that a shotgun with their name on it was a hardware gun made by Crescent. They would put anybody's company name on guns.
Also found their name mentioned in a bicycle booklet:
"AMERICAN CYCLE TRACK CO. Velodrome. Score Card.
Los Angeles, C.S. Sprecher, Publisher, 1899. 1899, No Jacket No Binding Very Good 10 1/8" x 7". 12 pages (including original printed covers). Illustrated. Rare thus! Includes advertisements for: 1). William H. Hoegee. 2). Los Angeles Business College. 3). Young & Allen Union / Colombian Bicycles. 4). Southern California Arms Co. 5). Hawley, King & Co. 6). Tufts-Lyon Arms Co. 7). Yosemite Company. 8). Queen Shoe Store. 9). Appeal Cycle Manufacturing Co. 10). Burlie Bros. 11). Appeal Bicycles 12). Cleveland Bicycles. "
John