I'm Stumped...just for info, What is this Please

 

I can’t make out what those numbers are on it.

 

It’s the later version of a shovel - to me its lift is short and not an evo style - the thing is gun drilled that’s old stool thinking - the numbering system used looks to me as. Customer made cam by crane - they were not in the production line up they were one off and the machinest was scribing them - if they were still in business they could tell you

 

Pretty sure it's an Evo cam gear.. Are there 2etched circles on the front of the cam gear.. Looks to have a lot of duration.. Did you get that off of Ebay?

 

It is On the "bay" in fact...but...looks too much Duration for Me.. Sure got me curious...but, like John points, Crane did etch info on cams..at some point! Wonderment is ...What Cam is it... I do believe I had a Fireball 300 or some such with an Etched Lobe..Long ago.. Thanks John for the Memory Jog!!