Originally Posted by mart

The 37S or 37 Skeet was a model rather than specifically a skeet gun. They were available in all the common chokings. Mine is a 26” IC.

Understood. So were the S and T versions the only way to get a vent rib at that time? Yours is really nice looking, mine looks to have been carried a bit more with some bluing loss on the receiver along with stock and forearm wear. No worries as I didn't buy it to collect. I may refinish the stock at some point since it is no longer original anyway and it has some nice grain. Cool guns.