Well I am not much into stock cars. In fact have two never opened that are part of 6-car sets. Now if someone made the Pennsy rebuilt old round tops would have brought one.
But never realized that double decker stock cars were made in O until seeing Patrick's (Trumptrain). Did an ebay for Lionel found some. When finding out that his was a K-Line searched and found a NIB (sealed box) K-line car at Grzboski's for $35.00.