Quote:
Originally Posted by DBesse27
Volod, I'm guessing those sleeves are polyurethane, not polyester 
|
Most of my sets were put together in the '80's, when storage materials were still relatively cheap, so at that time, polyester (mylar) sleeves could be had by the K for about six bucks or so. I don't know if they are even still available these days - but polypropylene, which is what I believe you mean, is almost as clear, though not as archivally approved.