I have to take exception with you on this, but I think it's fantastic and so much better than the norm. Any markings to the base either on top or underneath what you're looking for is a feint 3 line acid marking saying Venini, Murano, Italia. You may need an eye glass to find it, but I think this is a Venini clown designed in the 1950's by Bianconi, and I'd love to add it to my collection if you ever think it too hateful to hang on to.
Paul