Mystery Argentinean Head Pics!!

CNC-Dude said

Being it was a prototype casting over 50 years ago, it probably was limited to just a few castings. The fact that its unrecognized by your friend likely means it didn't produce favorable results and other prototypes of other heads took the spotlight.....

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Which one's are You referring to, the Tahuil Co., or the 24v DOHC Cecares Formula SP one? The date of the Tahuil Co. one is a mystery, I'm really just trying to fill a little historical void in, a company involved in a complete redesign & casting of a Slanty head had to have more irons in the fire..