Looks like water painting,Paper over cardboard,18" by 14"
This is a 1940s watercolor illustration of a pin-up girl with the title Scotch and Soda and signed Vito. The illustration is similar to advertising work in that era and as well it is reminiscent of tattoo art design. Vito is an unlisted artist, and if this was a published illustration, there would be notations on the backside. There are also condition issues to the surface which does impact value. The estimate is based on actual recent past recorded auction sales of comparables. Retail 'asking prices' can be higher and vary.