According to Della Corte, in one of these two small shops, either 15 or 16, the merchant Similis worked.
On the intermediate pilaster, on the left, one read –
Similis (?) Rog(at) [CIL IV 610]
See Della Corte, M., 1965. Case ed Abitanti di Pompei. Napoli: Fausto Fiorentino. (p.182)
According to Epigraphik-Datenbank Clauss/Slaby (See www.manfredclauss.de), this read -
Cuspium Pansam
aed(ilem)[S]i[mi]lis
rog(at) [CIL IV 610]