cant find model number

[BEERSTALKER]

Hi I need to find the model and year of my new outboard I suspect it to be a 80hp v4 speedifour 1964 but can't find a model or serial plate.
I have taken some part numbers that I could find
on the head there is a circle stamp with hubard B1386
other numbers are 307757-1, 980808, 377121, 377113. thanks