Think you are right with the name. Serigraph? Looks like the date is '05 so it could even be a modern photographic print process.
You can compare yours with this. (Keep in mind an asking price, not a sales price.) https://www.artsy.net/artwork/sam-g... 101-,Sam Gilliam,have sold for seven figures. Debora
Welcome to the party Rita T ! I like your choice of artwork-these are exactly the kinds of things I look for at 2nd Hands & Charities,offbeat-stuff the Norman Rockwell hunters might walk by.