In the process of sanding and cleaning the tongue of my Compact Jr., I found 4 sets of stamped numbers. Two of them I know what they are, the others I have no idea. From right to left side, there was a "6 71" which matches the date of manufacture on the tag on the rear, then a "PA 7514" which I have no idea. On the other side, there's a single "A", again, no idea, and "S 0089", which matches the serial number on the tag on the rear.
Thoughts, anyone?