A bit of confusion in the above posts. 25" and 28" were the standard barrel lengths on the 20ga Ithaca SKB's. The short-barreled 12's were 26". Not sure why they went with 25's for the 20ga guns. Maybe thinking Churchill, but those guns don't have a Churchill rib.
The models 100 and 150 were extractor guns. Other than the extractors, a 150 looks like a 200: BT forend, engraved receiver. The 100 was the only one that came with a splinter. Too bad they didn't put a splinter on the 280, which is the straight-stocked gun. Some of the 280 20ga guns with 25" barrels were choked IC in both barrels. There was also a sxs skeet gun in both 12 and 20. Basically a model 200 with the shorter barrels, both choked skeet. That's one you don't see all that often.
FWIW, I had an early (1968-69) SKB not sold by Ithaca that was a 150 and it had ejectors.
