There is a recent corpus of Pompeiian wall paintings titled
"Pitture e Pavimente." It has a string of authors including
Maria de Vos - I forget the others. And there were 4 volumes
divided by region and insula. I don't know what they did
regarding the unprovenience wall paintings (those removed
to the museum with any documentation of their house of
origin back in the 1700's).
If it still exists, then it should be in this book.
C.E.S. Boulis
UPMAA