Recherche dans la collection - International Peripheral Systems, Inc. fonds. [philatelic record]

The envelopes (accession 1992-085 DAP) were acquired by the National Postal Museum (NPM accession number unknown) from International Peripheral Systems, Inc. They were later acquired by the Canadian Postal Archives (and initially included in accession 1989-565)., The proof impressions (accession 1993-129 DAP) were acquired by the Canada Post Office Department/the National Postal Museum (NPM accession number unknown) from International Peripheral Systems, Inc. as a requirement of their contract with the Department. They were later acquired by the Canadian Postal Archives (and initially included in accession 1989-565).

Postal covers (envelopes, accession 1992-085 DAP): Organized in file folders; arranged by community postmark., Postal markings (proof impressions, accession 1993-129 DAP): Organized in a binder; arranged by proofing date order on binder pages.

Postal markings (proof impressions, accession 1993-129 DAP): Photocopies available, see finding aid.