WHAT DOES REMINGTON 870 WINGMASTER 2 3/4 ONLY MEAN?

Whilst I used to be on the lookout down absentmindedly in to the glass cupboards at revolvers, similar to a nerd at the school dance wanting to glance interested in a wall fixture, there was a *clunk* within the countertop that startled me.So I suppose the dilemma is, have been the really early Wingmasters, (say 1 made in March of 1950 ) ok or did