Need help with crankshaft identifying
 

A couple of years ago I found a stash with miscellaneous 356 parts, among others an S90 block from 1960 (the first year), flywheel, one head (black oxid), S90 mesh air filers and a crankshaft (55 mm over mains) that some say can´t be S90 as it is unweighted. I´m however pretty sure I read somewhere the first year S90 carried unweighted cranks, but can´t find that publication any more.
The stash was estate so that poor guy can´t advice me any more.

Crank numbers are: 61610210100, 13207A, C113276

Can anyone help with identifying this crank or confirm it indeed is for an early S90? Can´t start restoring the engine without knowing it is the correct one....

Dennis
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