did the factory not always use washers for the medallions?
Could the OP's grips be from the newer "classic" line? I can't recall if the older series guns had factory grips without washers for the medallions.
Maybe the grip experts will chime in. If they are indeed factory and for older guns like a 1979 Model 29-2 I would be in the market and interested at the $150 range.
I still haven't Lettered my 29-2 which shipped in May 1979 per Roy, so I don't know if the presentation grips on it were factory original (I know they are factory...just don't know if they shipped with this gun in May 1979), or should I be looking for nice checkered GA Targets with speed loader cutout (football is usually seen).