Non D.O.T Tires Date/Codes

[Dale A.]

Can someone tell me what these code/dates mean on my non D.O.T. tires on my 1961 Vette? Will they receive full points for Top Flight judging?

Goodyear De Luxe Super Cushion 6.70 X 15 4 ply.

I4CL536
I4CL687
I4CL087
I4CL569

[Terry M.]

Re: Non D.O.T Tires Date/Codes

I might if i was home, but alas I am "playing" at the National Convention for a week or ten days.