I would say the photo was taken in 1925, the last year of the black-only Model T's. The Coupe sitting on the right side of the photo is of the (late) 1923-25 style and appears to have the optional 21" balloon tires, made available for the first time during that year.
I wonder how it all ended for that shiny new Coupe sitting on the dealer's showroom floor? Did it end up as a bomb dropped over Germany or Japan in WWII? Maybe it survived the ravages of time and is sitting in someone's garage? Being a Model T Coupe lover, I sure hope so!
Marshall, 1924 Coupe owner