The Remignton 24 semi auto is a Browning licensed design that Remington manufactured for a number of years.
Yep. 1922-1935.
In 1935, they modified the design to be sleeker, easier to manufacture, "idiot mark"-proof for takedown/assembly, and more friendly during field stripping (staking or otherwise securing parts that 'fall out' of or are easy to accidentally remove from the 24 or SA-22).
The "new" version, the Model 241, ran from August 1935 to some time in 1951. At right around 7,200 model 241s produced, they added "Speedmaster" to the side of the receiver. (But, serial numbers were often out of sequence, so the serial numbers don't match production figures.)
The various models were available in .22 Short or and .22 LR.
With any of those rifles, other than newer Browning SA-22s, keep in mind that they were designed for "standard velocity" ammunition. Modern, "high velocity" and "hyper velocity" ammunition will cause premature wear and/or permanent damage.
I have a January 1936 model 241 in .22 LR that's in pretty good shape, and is 'pre-Speedmaster' with a 12k+ serial number. But, in all honesty, I'd rather have a model 24 or the Browning SA-22 - even if it was .22 Short only.