Russian spam can doesn't open with a pull tab like the Hormel potted meat can. It opens with a handcutter that levers from the rim like a big version of the old WW2 "John Wayne" c ration can opener.
I would like to get the actual key. The can is a gift for a family member that is an enthusiast. For all I know he will put the can in his collection and never open it (not my expectation but a possibility).