Looks like part of a teller stamp.
When notes are stored in the vault, the teller puts them together in a strap of 100 notes, then stamps the strap with their stamp to identify who verified the strap. Often with large teller stamps, part of the stamp ends up on the first note in the strap.
Usually teller stamps are black, but this one appears to have been green ink.
When notes are stored in the vault, the teller puts them together in a strap of 100 notes, then stamps the strap with their stamp to identify who verified the strap. Often with large teller stamps, part of the stamp ends up on the first note in the strap.
Usually teller stamps are black, but this one appears to have been green ink.




















