With the possible exception of the roof treatment, I think this is a factory-issue limo. When the massive K-Series cars were dropped in 1940, Ford needed a replacement limo, and cobbled up these handsome Zephyr-based cars, in much the same way as the Continental was spun off the Zephyr. This type of car was offered in '41 and '42, but was not revived after the war. One good side-effect of the Continental and limo cars was that they provided employment for the craftsmen who had faced furloughs when the K cars were discontinued. A lot of metal-working and leading of seams, etc., was involved with these Zephyr-based cars, and that is exactly the sort of thing the old craftsmen did so well. I don't recall production figures for the long sedans and limos, but there weren't many of them, as Cadillac and Packard dominated that market. Power for the limo was the stock Zephyr V-12 of 292 ci in '41 and 305 ci in '42. The 305 did not work out well, and the displacement reverted to 292 after the war and stayed there thru '48, the last year for the 12. A very handsome car, indeed.