Picked up the plate to the left last week. It is dated 3-42 and has Made in U.S.A. on the left and is a thick heavy sign. These are the small pump plates 8 by 12. The one to the right is very light and thin and has P&N 3-64 on the lower right corner. It is also a little brighter white. I picked this one up last year.
You can see other slight differences between them as well.
Last edited by 60wayne; Sat Mar 16 2013 03:25 PM.