Anyone remember the "Skeeter" mag loader?

[Rumrunner]

I have had this Ruger magazine loader for years. It is called "SKEETER'S THUMB SAVER". It is a very simple loader for Ruger22 auto pistols.

 

[Rumrunner]

Anybody else have one? It pulls the thumb button all the way down and swings under the magazine and holds it there while you drop in ammo. I got this when I managed a gun shop in the 70's.