Production year and numbers

On my 73 Duster, the door tag doesn't have anything on it at all.....in doing the body work on the car (since the sticker is in very bad shape) I'm having it removed and making a repo of it. BUT since mine doesn't have anything listed as for the following items:
Date of manufacture
GVWR: GAWR Front: GAWR Rear:
Vehicle ID Number.........I've got that
the last number listed at the bottom of the sticker beside MDH.....(no clue what that is)
Where can I get the correct numbers for the other items I've listed above??
Here's a picture of the tag I'm talking about and any help will be greatly appreciated......



Can anyone help me with this??

Greg ............. mtn_jake