I have been commissioned to engrave two miniature guns made by Uberti. One is a Walker Colt and the other is a Colt Single Action. The challenge is scaling down the scroll (tool configuration-heel angle degrees of 15°,20° or higher;tool angle of 80, 90°, or 120°; face angles of 45°, 50°, 55°, or 60°). The other challenge is holding these parts for engraving. I took down and reassembled the guns. That was easy. I will post pictures as I progress. Any feedback or information you have would be appreciated.