I want to reuse an envelope that has an unused stamp on it
I have an envelope. I put a permanent stamp on it like a year ago. It had a letter inside and was sealed ("licked shut"). I ended up not mailing it. I removed the letter (about half the adhesive is still useable, the other has the torn paper). I put sticky envelope labels on the "from" and "to", and put new addresses on it. In other words, I know the stamp hasn't been used, but it could easily appear to be a used/sent letter that didn't have the stamp cancelled. Can I reuse this envelope or will it be mistaken as a reused stamp/envelope that has been through the mail already?