Any expert out there ?? Trying to understand the difference between the card number and the file number on D&RG drawings.
An example, file number 3730 and card number C-389. This is a drawing for a truck with 33' wheels. Is there a relationship between card and file ?? Is there a number standard for the card ie C = Car, 3 = drawing size, 89 some sort of a commodity / classification break down ?? If a drawing is revised, how are the revisions tracked.
Any help / incite would be much appreciated
Dave