There is three styles of clips, The ones Jim Carter's is reproducing (came off one of my 1951s) is the 1947- mid 1952 are basically flat with a curve in at the top and used on windows that use the stainless edge on the sliding window section. I the other is seen on BigSix302's 1953 GMC burb (maybe we can get him to get a photo on one) then you have the later coated lock tab used in the later 1953s - 1955 1st
