Here are two sisters from 1897. Surcharged stamps were used during a shortage of Cabot 1 cent stamps.
At first blush, the surcharged stamps look alike. Two subtle differences though make one #75 and the other #76i (both Newfoundland of course--what else is there to collect?)
Enjoy--and please share if you have this stamp or a variant. There are lots of them out there.

