Here are the frames after they have been sanded with 320 grit sandpaper. They still need to be sanded with 600 and 1500, then on to the buffing wheel. This is the nice thing about using celluloid. It is a fairly hard, forgiving plastic when handled correctly. White pearl celluloid would get different treatment than black or the colored pearls (red, blue, or green) because the white pearl is actually two very thin layers laminated together, the top translucent pearl layer, and the bottom solid white layer. The colored pearls that I am able to get have a pearl pattern that runs through the thickness of the sheet, and the black is solid, which can all stand up to being sanded without having to worry about being sanded through.

The frames now need to be sanded for smoothness and then buffed to a high mirror shine. In this photo, the two end frames have been sanded with 320 grit wet/dry sandpaper, while the two inside frames are unsanded.

The left side.

The right side.

Updates after a long hiatus. I just recently received the frames back from having the actions fitted. A photo of both actions together. Note that they are not quite finished yet.