How old is it?

STIHL

Well-Known Member
Picked a few HP molds up from a fellow member and friend. I got to looking while cleaning this one up and I’m thinking this 429421 Ideal is somewhere in the 1940’s from my research. Very Clean mold. I gave it a little TLC and cleaned it up and getting everything adjusted to my liking. I know some of you guys are well versed in molds and the history, so what’s your thoughts?

I have yet to cast with them, work, rain, and other priorities haven’t let me have the time. I am chomping at the bit to get this one up to temp snd casting.
 

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Bret4207

At the casting bench in the sky. RIP Bret.
Someone had some info on when they started adding vent lines, Castpics maybe? Might be worth a look.