Schwinn Crank Date Codes

[Freqman1]

@draggin61 posted an early camel back Schwinn. He pulled the crank and it isn't dated. So who has the earliest dated crank? His bike has the Banner badge which, as I understand, was used up to about '17. I'm assuming his bike predates when the cranks were marked. What say ye Schwinn gurus? @dasberger what is the earliest you've seen?

 

[coasterbrakejunkie1969]

@draggin61 posted an early camel back Schwinn. He pulled the crank and it isn't dated. So who has the earliest dated crank? His bike has the Banner badge which, as I understand, was used up to about '17. I'm assuming his bike predates when the cranks were marked. What say ye Schwinn gurus? @dasberger what is the earliest you've seen?

I thought I have seen a '61 dated crank, I have a 1961 in my other storage unit I will pull the crank when I get a chance. Someone on here must know when the stampings started. Maybe I saw a weak stamped '67 and mistook it for '61.

 

[Freqman1]

I thought I have seen a '61 dated crank, I have a 1961 in my other storage unit I will pull the crank when I get a chance. Someone on here must know when the stampings started. Maybe I saw a weak stamped '67 and mistook it for '61.

The coding goes back to at least the early '30s and probably before that. Anyone pulled any teens dated cranks?

 

[cyclingday]

1916 date on the crank of this one.

The serial number is just three digits, so I think that puts it just after the one millionth turnover, so I consider the bike to be a 1917 model.
But the crank is dated 1916.

 

[Freqman1]

A friend sent me a pic of a '15 so that's the earliest so far.