We have been compiling some records here in St. Louis. We have an Arrowhead serial #381, which according to info from the original owner was purchased in the '30s and possibly built in the 20's. Do you have measurements for your canoe and have any idea which model it might be? Gil Cramer in Ohio had information on a Meramec that was purchased from St. Louis in either '37 or '38, serial #1164. Ken Mueller has a Meramec serial #664or #564. I have attached a picture of ours. Hope others can do the same or share measurements and/or serial #s.