I purchased a small lot of stamps at a show a few years ago and included in the package were some sealed packs of CWS North America Stamp Stock Pages. They look just like Vario pages (black, plastic) and the cover page says they are "free of dangerous chemical softeners".

Does anyone have any experience with this brand? All I have found on the internet is that CWS stands for Canadian Wholesale Supply. I cannot find any examples of the packs that I have - apparently these came in all the standard sizes like all other stock sheets (from 1 to 8 pockets and quarters).

Am wondering how old these are and if they are safe to use.

Thanks,

Sally