They would appear to be die abrasions, made by a mint worker and then the fields polished after, leaving what you see close to the devices. Fairly common. You will know when you have found a trail die, they are very unique. Some links.
http://goccf.com/t/423289&SearchTerms=trail
http://goccf.com/t/417153&SearchTerms=trail
http://goccf.com/t/414592&SearchTerms=trail
http://goccf.com/t/423289&SearchTerms=trail
http://goccf.com/t/417153&SearchTerms=trail
http://goccf.com/t/414592&SearchTerms=trail
-makecents-
Edited by -makecents-
07/04/2022 7:18 pm
07/04/2022 7:18 pm