Are reproduction Vent Window Handles and related parts available?

[KYBlueOval]

UPDATE: Based on the information from Ray Summitt in #5 above I did a search for vent window handles. Ray is spot on, the '57 Ford Vent window handles are the same as '58-'60 Thunderbird vent window handles. That's the good news........Finding a source is challenging. Concours did not have them. Larry's Thunderbird Parts did not have them. Obsolete in Oklahoma did not have them......BUT, I found a pair at Pat Wilson's Thunderbird Parts, in Newton N.J. 973-579-7205 His part number is B22917A for the Left, I believe the right side number ends in 16A $24.00 each. My impression from my conversation with Pat, is that he had a good inventory of these handles.
John