My friend from the other jewelry makers list sent the mystery thing
back to Rio last week with a letter begging someone to call her and
tell her what it is. Today she received a call from them. One of you
brilliant people got it exactly right.
In one of the digest replies to my original question, Tim wrote
I think it is the base for the "perforated necklace/earing
display" that is on page 87 of the 2007-2008 Rio Display &
Packaging catalog. Tim
And that’s exactly what it was! Good eye, Tim!
But how that got sent out in place of a ring mandrel will forever
remain unknown… At least all the folks on the other list can
finally sleep well, knowing that the mystery is solved. And I think a
few of them might go and buy one of those displays!
Feathered Gems Jewelry