Ancient Roman fresco of Pan and Hermaphroditus from the House of Dioscuri in Pompeii, now in the Archaeological Museum in Naples, Italy
What will your search terms be, in order to gain the most reliable and useful results?
Please be careful with using Google to search for Religious artefacts of Pompeii, as there are many student assignments there, containing unverified content.
One suggestion is to search Herculaneum gods images and through an image search, scroll and look for relevant sources.
Always seek out authoritative texts from sites with .edu or .org or National broadcasters such as ABC or BBC domains. Also use the databases listed at the left, or use the books in the library.