Not sure what I was doing wrong, but couldn't get the pics to post properly...hopefully the link works.
Thought these were "interesting", as I had never seen these before. Searching the web, I found some ECHO branded scope mounts from the 50s-60s. The companies formal name was E.C. Herkner Co...hence ECHO. seems they also made some other shooting accessories so swivel studs seem like something the could have made, though I did not find a reference to such.
Just curious to know if any of the folks here remeber/have seen these...
