Great subject HD sprocket.
I’ve had this sprocket since 1982. I think it’s a Davis frame serial number (02320) above that serial number looks to be a stamping of an upside down (7?) I will try to post some photos of the sprocket and crank. I would appreciate any information about the crank / is that a (B) or number (8)?
Also notice an (A) stamped on the bearing race could this identify the year of the sprocket and crank?
There's evidence the S-A Tricoaster were standard and optional equipment on Daytons, Excelsior, and Chiefs, plus many other brands in 1915. If anyone has a Tricoaster rear hub without the large stamped ‘S’ please share a pic or info at the above link to avoid hijacking this thread.
On another note, I'd like to thank Chris (Chitown), who posted the bottom articles from a 1914 Sears catalog about a Sears factory?
I also found evidence that in 1914 the King Sewing Machine Co manufactured the S-A Tricoaster in Chicago (King was a subsidiary of Sears, Roebuck)! Does anyone have any idea as to how many companies Sears contracted for their bicycle manufacturing?
Additionally, I found this interesting titbit about Sears acquiring the controlling interest of Davis...can anyone elaborate? How long did Sears owned Davis and when did they sell it or did they? Again, submit your response/s directly to https://thecabe.com/forum/threads/sturmey-archer-tricoaster.122737/ to avoid disrupting this thread.