NASA postal cover interplanetary Viking Mariner Pioneer Mars Jupiter Venus

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Interplanetary Probe Postal Cover Wholesale Lot of 100 - Mariner Pioneer Viking - NASA Mission Envelopes

Description

This wholesale offering includes 100 envelopes featuring colorful cachets on first day covers for USPS postage stamps released in 1975 to commemorate several NASA interplanetary probes. Assortment includes:

Mariner 10 (Venus and Mercury) x50
Pioneer (Jupiter) x25
Viking (Mars) x25

These are fun collectibles because they are uniquely tied to the original space event date through their postmark and thus can never be produced again. Collecting postal covers provides a route for learning more about the details of specific events in space exploration history.

Would produce a nice framed set!

Each envelope is protected in a clear plastic sleeve.