The Free Library, Francesco Sforza, and Forgeries

Philadelphia, Free Library, Lewis E M 33:22 [Source]

Browsing the recently improved website of the Free Library, Philadelphia, I found the image above. The style is a bit weird, for reasons that will become apparent, but regular readers will recognise the lattice window and wall-covering behind the half-length pope from posts here, here, and here, and especially here.