Can You Identify These Herrett's Grips?

Trying to find out what this pair of Herrett's grips are for. In addition to the pictures, here's what I know: Have original box that was postmarked 11-19-76. I'm pretty certain they're for a .22 since the area for the magazine is very narrow. Grid paper is 4 per inch.

Those are probably for a Ruger Mark II
Jon

I was thinking a colt?

Might not be a Ruger. Hard to tell on my phone

Hmmm... any Ruger I've seen has two screw holes. These grips only have one. I also learned they do not fit Hi Standard Model 101, 104, 106, or 107. Sooner or later, through process of elimination, I hope I can find their mate. They're just too good to be sitting in a box. They need a home.

Looks like a clearance cut for a magazine loading button on left panel.

https://www.colt22.com/wmmagazine.html

Maybe

I think it´s for an FN Browning (Medalist, model 150, I think there are a few model names)
Rugers and Colts have a solid backstrap, the FN does not.
The sloping top surface on the left hand grip gave it away to me...

Sure looks like it!

Thank you all for the replies. Indeed, it looks like a match for the FN Browning. And the age of the firearm would make sense too (the grips were shipped on November, 1976 so pistol had to be manufactured prior to that.) I reached out to Herrett's to confirm but they are in the process of setting up a new factory and can't reply right now. I hope to find a nice home for them. Will plan to post F/S later.

See if there is a match here? I thought Medalist before I read the prior posts!

https://www.ebay.com/itm/Browning-Medalist-Wood-Target-Grips-Right-Hand-297-RL/373454108644?hash=item56f39977e4:g:mD0AAOSwQndgIeLn

Smiles,

Yes, it looks like a match. I'll be posting them for sale on eBay and hope they can find a good home. Thank you all for the great replies!