I have found these registration numbers on the left side of the rear panel.  I think this is the best I can do with out destroying what I already have.  I would very much like to know what the missing numbers could be before I start the restoration of the tub.  Since this is one of the first Canadian Contract 241-242 Jeeps and may have served in Canada or the UK.  Maybe someone in Canada or the UK, or anyone for that matter would have some pictures or information that could help me narrow this down. There are 2 sets of numbers on top of each other.  I believe the first set is the small 2-1/2 inch letters, top row 6020. Because of the early serial number this number probably would have been CM 1166020.   The second or later set is 3-1/2 inches.  The top row is 423 and bottom row is X205 (X is a missing number that is gone and I don't know what it is).  This number would have been put on later and would have been CM 423X205.  Just above and slightly to the right of the "S" in WILLYS is a white circle or dot appox. 5 inches in diameter. If you have any pictures or information with either of these numbers could you please contact me  at ronmcmullen@hotmail.com  Thank you. You can see the pictures below.