I do not know for sure, but I think '29 was only wood spoke wheels, with steel spokes in the early '30s. Any '29 with anything other then wood may have been a modification for racing, or something. Others may be able to give you better infomation on this.
John
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'32 - 57-S
'68 Riviera
Assistant Director - Yankee Chapter BCA
ROA, AACA, BDE