My 1954 Chevrolet Suburban has different styles of window pulls and vertical stainless steel bars (the bars with the whiskers are on the stationary glass on 1954 Chevrolet Suburbans).
However, it might help you to know that
Restoration Specialties & Supply, Inc. had whiskers that I was able to adapt to my vertical bars.
They are an excellent company and very helpful over the phone. They helped me match-up an adaptation of one of their whiskers.
Their catalog has to be downloaded. If you make an order, ask for a copy of their catalog. It is an excellent resource for odd parts. All of its drawings are full-scale (making comparison easy).