GRS made them out of CLEAR plastic.
A great aid in placing them on the work if you kept the plastic background clean.
Not quite the same, but Ngraver made a set of plastic scroll templates for use with a fine lead pencil. Check, both companies may still have some stock for sale.
The melting point of copper is 1984 degrees F. as you probably know.
Most original charcoal pack heat case color hardening is at 2010 degrees, if memory serves.
I have not tried this myself with copper inlays.
But would advise consulting Doug Turnbull for info.
He does great color case work...
GRS used to sell them. I haven't seen them in their recent catalogs though.
Maybe someone has an old set they want to sell.
Try an ad in the Buy/Sell section of the Cafe Forum.
Archie, first see what a good metalsmith thinks about removing the vibro numbers.
If that is a negative the numbers can be cut deeper with a graver and inlaid with carbon steel soft iron binding wire.
In the past I have bought several guns and restored them that way.
Mitch, they are not much to look at but the liners cut so well when hammer driven.
They come in some of the finest, tight line spacing I have ever seen.
Hi Mitch, I expect you know this but other may not.
Back in the day Fredrich Dick made all the gravers and liners for the FN Browning company in Liege, Belgium.
The actual graver and/or liner and square handle was made in one piece of high grade steel 10 mm. square by 210 cm. long.
Years ago I...
Quote... Fred
Hi John, I hear they found Richard III in a car park. As I recall, he would have welcomed a horse that was foundering.
Yes Fred,
He was buried under the blacktop. of what became a parking lot.
And with no marker they paved over his grave hundreds of years later.
Remember " a...
Hi Fred. Luckily none of my personal racing mounts foundered.
But it brought back vivid memories of my old English Language instructor, Mr. Sparks.
Many years ago. He also taught English History and writing.
Welcome to the wonderful family of friends of engraving, Mike G.
Best of luck on your search for instruction.
Check with the NRA to see where colleges are holding Summer Engraving classes.