Hy-Score - grips
Hy-Score - range of coloured grips
With thanks to WestleyR on the AVA for this pic:
Thanks to Steve for this marbled brown or (as he says) "petrified wood" Hy-Score grip:
He also adds this beige grip, although it's on a Sussex Armoury (UK) Hy-Score pistol (pic courtesy of LeonardJ):
General Electric ad re. Hy-Score plastic grip
With thanks to Trev for this scan.
Steve (45flint) said on the airgunbbs.com: "One large difference between the US & UK pistols, that I’ve never heard discussed are the materials used to make the grips. The U.K. version is pretty generic plastic? The US version used a more expensive plastic called Tenite. They made a big deal of it at the time, see the ad below from GE.
"'Tenite cellulosics are manufactured from renewable raw materials (soft woods); they exhibit many of the same tactile and finish properties as wood'.
"This plastic does have a much more high end tactile feel, and is better looking I think. (even used in medical devices) It’s hard to pick up the difference in pictures but not hard if your holding the pistols."