You must have used the old K+E Leroy lettering guide (I’m an engineer and I’m dating myself), as well as H2 and HB drafting leads. Now everything is at least AutoCAD.
I can read cursive, but thanks to a hand injury - as in multiple fractures that had to be surgically reduced) I can no longer write cursive.
H2 and HB drafting leads
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I’m still using both leads and I began in the mid-’60s.
Now, they are mostly used for crossword puzzle books.