RRoyPERFIN wrote:
How safe or how bad are Zip Loc bags for stamp storage of extras?

Unless the bags are marked "archival quality" I suspect that plasticizers have
been used in the manufacture of the material. This is known to have deleterious
effects on stamps.
I think this depends on
how common are the stamps? and
how long are you going to keep them.

I keep my collection of bulk mail and 37cent flags that I am checking
for varities differently than I keep my US C3a and my 1 cent magenta
British Guiana. g

--
To e-mail me get rid of the cats and dogs.