We have 30+ Tyvek "First Class" mailing envelopes, measuring roughly 11.5" x 14.5". They are nice quality and unused.
These were business reply envelopes, so you will have to cover the printed address and the "no postage necessary" stamp (which is invalid for any other address) if you use them for shipping. We have already removed the paper bar codes.
We're in the Centerville area of Fremont, near Thorton Ave.
Andy
11.5" x 14.5" envelopes
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