I've been trying to track down this article:
"Making a special die" by Tubal Cain in ME Vol 153 No 3735 pp214 (reference found on the index on the web)
since it coincides with what I'm trying to do -- make a special die; in my case for 0.275" x 40tpi thread for a Lorch 8mm watchmakers' lathe collet. I have seen the article before when reading through MEs in a club library and remember some handy tips on hardening without distorting the die.
However it neatly coincides with a gap in my model engineer stocks (mostly volume prior to vol 150 and after vol 156!). I'd be happy to pay copying costs if anyone has the article (or indeed a scan of it).
Alternatively I've got a box of duplicates for MEs covering volumes around 140-150 which might contain one which I could send in exchange!
Alan Bain