In the above example, Great Britain, the official country name as used by USPS, is written in full. This is perfectly acceptable, or you can find a country's two-letter abbreviation on the USPS website. Great Britain's abbreviation, GB, is obvious, but some abbreviations are not. For e...
When we reached out to USPS to inquire about the addresses they acknowledged that they were indeed geographically located in Colorado; however, their ZIP code is associated with a USPS Post Office located in Jelm, Wyoming and that is the reason why the mailing addresses are for Jelm, Wyoming...