I've heard that the records where destroyed and that they started putting plauks on them at some time but maybe someone might have a educated guess on the date of manufacture.
Peterborough #4 cedar rib canoe.
4 8809
The Peterborough Canoe Co offered cedar rib canoes from the start in 1892 until sometime in the mid 1940’s. They were built on special order for a few more years.
The cedar rib model #4 was offered from 1892 until 1939. After 1939 the model #4 changed model number to #1424.
The practice of stamping the model/serial number into the coaming seems to have ended sometime in the early 1900’s.
Keep up the good work.