Wheel date code. Tell me if I am reading this correctly??

Joeg340 said
So am understanding this correct? M5 is the plant, the 9 under the M5 is the year of manufacture, what is the 6 to the left of the valve stem and the 3 to the right? The 5.5 is the wheel size. Is it 6/3/69? Or is it 3/6/69?
Joe

OK, so your saying in order left to right you read

M5___6___ (valve hole)___3___5.5
9

This is 6/3/69___5.5" wide