It’s presumed by many, that all Ford/Mercury wagons had black rubberized fabric Sedan Decking tops! So, and not so! The colored top was a Mercury only item and I’m led to believe, the material was first used to seal the cabin tops and decks on wooden yachts and cabin cruisers in the thirties. Before this, the marine industry used oiled and painted canvas for the same application.
The Sedan Decking material was cheap way of creating a weatherproof top when no steel roof was available. The cost of tooling for such a huge steel top, would have been outrageous for the limited number of wagons built. Indeed, the Mercury color-matching top offered a unique look on their V8 line and certainly gave it an up-market look to the wagon in 1941. By 1946, the option was gone but this blue 1946 Mercury wagon still looks elegant and tight with its black top.