Value Of 1962 Canadian Coin Set?

Hello. In doing some garage cleaning, I came across an envelope my late uncle from Sault Ste. Marie containing a 1962 Canadian coin set of 6. It's under a plastic film in a alligator pattern embossed cardboard holder. I'll try my best to post pics later with my iPhone. They look to be in perfect condition and shiny with some brown and bluish patina, but honestly, I can't tell whether the mirrorlike reflection is from the coin itself or the plastic film (I suspect the latter). Would I devalue the set if I carefully cut the holder apart and placed them in one of those clear hard plastic holders? Thanks.