This has been discussed in the link below but I think the consensus is you need the foil packs and front dispenser to make a determination. The 49 came with the all foil packs w black lettering and cream dispenser; the 50 had the Gillette blue dispenser printed on the foil as shown above and a blue dispenser up front. Notice how it says it's a 49 though. Is it a 49 w 50 foil packs or a 50 with the wrong front dispenser? Ha.Cool ads! thanks Dan! is there a way to distinguish a 1949 razor from other years? I need to find a history of the Executive but don't know where to look. Just Google it?