3 ms·If you (or anyone) manages to find it, I’d appreciate a link, sounds like a good readby dkdbejwi383 5y agoIf you (or anyone) manages to find it, I’d appreciate a link, sounds like a good readcoolspot 5y agohttps://webmonkeyuk.wordpress.com/2012/01/26/putting-a-gps-tracker-in-the-mail/ https://webmonkeyuk.wordpress.com/2012/01/26/putting-a-gps-t...orhmeh09 5y agoThis is from 2012 and it concerns the UK mail system, not USPS.