Okay guys, I dug these out of the archive.  Who know what brand these are?

These are about 1/2-3/4 oz, bullet style, line thru head design, line pops out below the hook similar to Vertical Lures, long shank, round bend hook.  The line used to tie to an 0-ring that was slipped around the hook.  This jig is about 15-20 years old. Just curious if anybody knows the brand?

another pic

I forgot the second part of this...how do you propose making that hollow core where the line goes? a guy could stick a rod in it, but how do you get the rod out once the lead is poured around it?

Don't remember the name brand but I got me some of them right there, it's has a plastic insert to create the space for the line to go through.