OK Kev, I am going to give a guess on this one after looking around a bit on ebay !! I think the JART is more of an import stamp and not a makers mark !! There are many on ebay similar to youurs that are made in Jalisco ( a state in Mexico) from the town of Tonala !! I think that the JART may indicate the state, what the object is made of (acrylic resin) and the town, and last would be the country Mexico !! So !!,,,JART !!