I have a picture of an old print of a painting I found in my attic. Is there a site where I might ask if anyone can help me identify when it was made or who the artist might be? Or at least give ideas on how to determine these things? I considered photography, but couldn't for sure tell if that would be on-topic.
If there is any connection between it and your family history, you may want to post it in a question at the Genealogy & Family History Stack Exchange, to explore that connection.
G&FH SE often gets old photos, old handwriting, and occasionally old paintings (usually portraits) to try and make sense of. As long as there is a connection to family history such questions are on-topic there.