Not much about it on the 'Net
I did find out that they were made by Bass Buster Lures...and the company went out of business late '60's - early '70's
Can you post a pic of one? There may be a simple way to make the skirt
Also...take a look at the older rubber-style skirts that are used on Hula Poppers. Don't know if they'd be stiff enough for you...but the strands are considerably thicker (and rubber) than silicone skirts used recently.