Art Pottery Signed Peter LOT 2 Brown Blue Oil Lamp Double Wick

Art Pottery Signed Peter LOT 2 Brown Blue Oil Lamp Double Wick. They are both marked with the name Peter and nothing else.   I’m not 100% sure these are for oil lamps but that’s what they look like to me. I do not have any wicks and I have not tested them. Inside each of the bowls the rim is not there so that you can pour out a liquid. So I’m assuming it’s for oil. Each top has two holes to put a wick. Measurements: The brown one is almost 5 inches tall and the blue one is approximately 4 1/2 inches tall. The brown one is 4 1/4 inches across and the blue one is just under 4 inches across. Condition: very nice condition I don’t think they were ever used.