The thread on which tools Victorinox should retire got me thinking. I only use the corkscrew for carrying the eyeglass screwdriver and as a marlinspike. The Officer was the first civilian SAK, and came with a backside corkscrew. Only a small minority of my SAKs have corkscrews (Three or four, out of about 10 84mm and above SAKs have them in my collection).
I've seen SAKs from the '40s with a backside Phillips, so when was this tool introduced?