Possibly a postal worker identification cancel, like they used in the Netherlands and Belgium, meaning the person who handled this letter marked it with his number. See links for more info.
Linus
https://stamporama.com/discboard/disc_main.php?action=20&id=16621#125512
https://stamporama.com/discboard/disc_main.php?action=20&id=22617#162161
Thanks, I think you're correct.
Most of this cover is self explanatory. It's from 1904, with a flag cancel. The sending company and receiving company were well known at the time. My question is,what does the "19A" mark/stamp signify?
(Modified by Moderator on 2019-09-19 04:14:58)
re: Postal notation on German Cover
Possibly a postal worker identification cancel, like they used in the Netherlands and Belgium, meaning the person who handled this letter marked it with his number. See links for more info.
Linus
https://stamporama.com/discboard/disc_main.php?action=20&id=16621#125512
https://stamporama.com/discboard/disc_main.php?action=20&id=22617#162161
re: Postal notation on German Cover
Thanks, I think you're correct.