The M 1924 „SEQUOIA“ model came with a three-leaves “Express” sight, all leaves folding down. The Steyr serial numbers are all three digit below # 6oo. They were originally marked “M 1924” on the receiver ring and “SEQUOIA” on he barrel reinforce without any hint to the chambering. Left-over examples had the M 1924 line removed and were restamped “KAL:7.62x63”. Here is a photo of mine, Steyr serial number 299. The SEQUOIA inscription may be hidden below the “factory” scope mount base, but I am not curious enough to unsolder the base just to have a look at it.

As casper's rifle has a four digit serial number, the receiver ring shows no signs of a former "M 1924" inscription being removed and the rear sight base is for a standard M-S sight, it is identified as a M 1925.