The rear side-window pulls changed (maybe in 1953) to the "short" style that I have on my 1954 (they are original).
My '53 burb has the long pulls so, it looks like they went to the short pulls in 1954.
I have always wondered why some of the locking tabs I have seen have a hard plastic/rubber coating on them & now I know why.
When they eliminated the long pulls they had to insulate the locking tab from bare metal contacting the glass & the plastic/rubber coating was added to the tabs.
Original factory photo does confirm that the short pulls were used in 1954.