hi
yes, there is some small play in some functions, it is difficult to open some functions, but oil helps, it is what it is a knockoff type still i find it interesting to learn from, the main blade is solid and no play, i will have to touch up the edge , it will probarbly get a good sharpness, i wonder about the symbol, by the looks on the surface of the tools it should have age to it,...maybe the round phillips is not a giveaway since if this is from the 1980s i would be surprised, well, it is a cheap knife..