Over the years one comes across a product that seems to have many identifiers and can cause much confusion when trying to buy or …
A1 / 4-BAR Envelopes – What is an A1 Envelope?
A1 Envelopes which are technically listed among Baronial Envelopes and properly named a 4-BAR Envelope. A1 is a common name …
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Question: What’s the smallest envelope permitted through the post office?
Answer: 3-1/2-x-5 (inches) is the smallest legal mailing size for an envelope in the US. The smallest "mailable" size …
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