Well there it is - "Square gold bead" thanks william iorg. I've never heard of that either, a square bead. Sell was definitely a loony. I wonder why a square bead. Now I'll be thinking about that all night.
Lots to be said for a fat square Sourdough gold front sight. Think about it - why do all handgun sights, target/hunting/self defense/etc., present a fat square post front sight to the eye, when once upon a time such front sights on target pistols and a lot of utility handguns were round beads?
I'm thinking you and Fury01 are right. Thanks.
"One should not talk to a skilled hunter about what is forbidden by the Buddha."