I just returned from the cabin to find that the jacket on which my Rohrbaugh lapel pin is now affixed was left at the home of one of my daughters on our last visit. I'll retrieve it in a week or so. In the meantime, here is a shot of one of Ed's pins which is similar to mine -- less the engraved serial number, of course.
(http://i2.photobucket.com/albums/y30/RichardS/rohrbaughlapelpin.jpg)
When I retrieve my jacket with the pin, I'll try to get a good macro photograph of it and post it as promised.
I've now retrieved the jacket on which I had mounted Ed's miniature R9 as a lapel pin and have taken the following macro photograph of it being used as a tie tack. It's difficult to see, but the serial number of my R9 132 is engraved on the frame.
(http://i2.photobucket.com/albums/y30/RichardS/may2402.jpg)