Thanks for the compliments.
The frog is formed freehand. There is no mold. I sketch the original design on the front and then score the lines with a liner. The back is then raised up fairly high ad the the piece is modeled with punches to create the final shapes.
This frog was done as a study and It is part of a portfolio I use when I teach. I have made pendants from similar items that I have made.
I am teaches a 2 day workshop here in Tucson on repoussed faces in March.
Fred