Need someone to decode Polyglas tire dates

[camaromb]

The first sequence should be the same as '69 format, date then plant.
CDNBJADL
CD is 12th wk '71 and NB is Akron II plant.

The last 2 sequences should be plant designation first and then the last 3 numbers are week and year.
MBNFDLA231
MB should be Akron II plant and 23 1 should be 23rd week of '71.
That should be correct, I'm more familiar with the '68 &'69 codes though.
Mark

[freddy]

sorry I was wrong CDNBJADL is the 12th week of 71
That makes more sense, been a while since I decoded a tire I was looking at the wrong letters [img]<<GRAEMLIN_URL>>/rolleyes.gif[/img]