Finally had a chance to do some checking on the various websites.
From the Society of Paper Money Collectors website: "Some of the notes had smaller bronze skeletal surcharges in the upper and/or lower corners, probably denoting different experiments in paper types, printing types and ink types."
While thats hardly definitive, it gives a clue what they were for. That they were printed using the same bronzing as the ovals is interesting.
Nobody asked at my Thursday lecture, so I ended up not needing the answer anyway!
From the Society of Paper Money Collectors website: "Some of the notes had smaller bronze skeletal surcharges in the upper and/or lower corners, probably denoting different experiments in paper types, printing types and ink types."
While thats hardly definitive, it gives a clue what they were for. That they were printed using the same bronzing as the ovals is interesting.
Nobody asked at my Thursday lecture, so I ended up not needing the answer anyway!



















