Satin Silver Blank Engraving Plates - Small Sizes

I am using these for labelling the controls on custom guitar pedals. I hand stamp the lettering, infill with enamel paint, sand off the excess and polish with wet-dry sandpaper and rivet to an aluminum Hammond enclosure with a drop of epoxy near the middle to keep it flush. Works well, although the metal is thin so they do tend to develop a bit of a curve during the stamping and need to be gently hammered flat again. 1" x 4" isn't a very easy size to find for plates like this, I'll definitely be ordering more in the future.