Splendid Gordon. If you have the scan at high resolution I can always add the Northumberland ones to the the thread 'large size'.
Here's an odd one. the image itself embedded in the card feels like something solid - glass or metal. I thought subject was a boy but on closer inspection it must be a girl?
J. Austin Photographer 13 Grainger St. West Newcastle & 75 Princes St Edinboro.
The American Gem Latest Novelty 9 for 7½ d
[
edit. I think this is what you call a 'Tintype' where the photo was on a metal plate. These are allegedly magnetic, and this one is. It would also explain the rust]