Grips on 1950 Target

[smithfelty]

These grips are on my 1950 Target 45 Auto Rim. Does anybody know anything about them?
Sorry the picture is big, I thought I had it resized.

 

[fat tom]

They look like custom-made aftermarket targets to me. Are there any markings on the back of them?
f.t.

 

[smithfelty]

No marking anywhere.

 

[fat tom]

Made by a hobbyist/enthusiast most likely.
f.t.