hi there,
I was wondering if anyone could help in identifying single black lines on some USA stamps that I have listed at the moment. I'm only a hobbyist and don't have a clue. I thought they might be cancellations but now I'm wondering if they are black pen lines. Two of the stamps have gum and the others don't so not sure if they're used or not.
Thank you so much in advance.
Kind regards,
Debra.
