The numbers are those referred to on the pompeiiinpictures pages for VII.9.1.
This plan is to help you accurately locate the items shown in the photographs of this house.
The plan also shows the rear entrance and stairs at VII.9.67.
The room numbers shown are based on the plan by Mau and give a direct reference to his book to aid your research.
See Mau, A., 1907, translated by Kelsey F. W. Pompeii: Its Life and Art. New York: Macmillan. (p. 110).
Please be aware that the room numbers will differ from any other plans or records both published and unpublished.