Looks like a Capital letter A was scratched, not stamped on back of each setting.
<img src=/uploads/db1846/original/1X/b1ec2989c9b0c8e00943458f2aeae68b42b8e0e7.jpg">
<img src=/uploads/db1846/original/1X/cd44eda7d65db3812f1fffd10363e833fb2ce9fb.jpg">
Looks like a Capital letter A was scratched, not stamped on back of each setting.
<img src=/uploads/db1846/original/1X/b1ec2989c9b0c8e00943458f2aeae68b42b8e0e7.jpg">
<img src=/uploads/db1846/original/1X/cd44eda7d65db3812f1fffd10363e833fb2ce9fb.jpg">