At least one of these items could be left over from the 1951 Plymouth we had when I was growing up. Another might be from my grandpa's 1949 Buick. Probably not the dash tray though, as I don't think my grandma would have approved. Plastic tray with decorative photograph had magnets on the bottom for clinging to a metal dash. It would have worked on my '54 Chevy, but I sold it, and I have no more metal-dashed cars. Clothing hook hangs on the one clothing hook that was standard on many 1950s cars, so you can hang several garments.
I may have a rooftop luggage rack from the same era, possibly a device that hangs over the front seat backs, and provides a tray for riders in the back seat, other vintage car items. I'll have to look.
I can meet with a buyer in the Des Moines area next time I'm up that way, at some convenient location for the sale.