PRINZ Gard Polystyrol Blockmounts Black

PRINZ Polystyrol Blockmounts for miniaturesheets,covers and booklets. Prinz Polystrol stamp mounts have been proven to be the safest material to store your valuable stamps and doucuments. The extra strong action of the mounts will securely hold your stamps in place preventing them from slipping out. Stamp mounts are avalable in transparent (clear) or Black and standard (top opening) or Gard (back opening) the materials are free of plastizers and harmful chemicals. Polystyrol is a proven archival quality material that will not damage your stamps