Number Punches

I have a replacement frame coming in for my '58 ES2. It's going to carry the number of the damaged frame it is replacing. One way or another I need a set of number punches, so why not go for the original typface! Does anyone know where Bracebridge Street got their 1/4" (6 mm) punches for the single-downtube singles? If I have the name of a manufacturer it would save a lot of time when trawling through the adds.  I've read input somewhere on the forum from AJD that she has the actual punches used at Bracebridge St., but the forum is not permtting contact with her. Please, before anyone starts telling me what is legal and what is not, I'm fully informed about this and know what is involved to do this properly.