They make Trico stainless look-a-likes, and they are available at many, many classic car parts places. Just ask for '67 Impala.
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Prince Edward Island
'64 Parisienne CS "barn find" - last on the road in '86 ... Owner Protection Plan booklet, original paint, original near-mint aqua interior, original aqua GM floor mats, original 283, factory posi, and original rust.
Cool, I've been wondering if something like this was available for the oldies, as the all black blades just don't look right. I saved an old set of stainless blades (somewhere) just in case I need them someday - just have to replace the rubbers.