North Carolina & St Louis Railroad Lock by Yale

Can you help me with any history on this lock marked North Carolina & St Louis Railroad by Yale?

bnmyers wrote
Can you help me with any history on this lock marked North Carolina & St Louis Railroad by Yale?

There is a brief history of the NC&StL here:
http://ncstl.com/history/history.htm
Perhaps their Preservation Society could help with your lock?

Pete Schifferli

[unknown]