I got your pm Ed, and I'll copy the reply here as well for you.
Hello Ed,
I'm sorry but I don't have any spare grips, and half of mine are broken as well. I've got 4 Webley pistols, and only 2 of them have complete grips.
Coincidentally, I've just come back in from making a template to use for making some wood grips for my pistols, so I can keep the good ones out of harms way.
Your best bet would be to put an ad in the collectors section, and the wanted section as well.
ATB
Garry