Original 97s (and correct copies) and model 12s will do that. There is NO DISCONNECTOR. My younger brother missed losing a foot by a couple inches one time, when he chambered a shell in my old Model 12 (borrowed without asking) with his finger on the trigger.
Winchester added a disconnector to late production model 12s, (trap guns, starting in the 60s, I think) but I'd have to look up the actual date this began.