bought last week a nice Monart vase lamp with original twin fitting , this lamp would have had a parchment shade at one time, interesting as on the label has been written shape JE which is a ginger jar and they have even written it has no lid and it has been acid washed to diffuse the light so I am now wondering if this means that they also used the shapes of lidded jars for their lamps aswell as their vase shapes, as it would have been easy to make a lid for it if one had been broken etc compared to acid washing it and also getting a twin fitting made to fit exact diameter of inside of neck, so an interesting addition to my ysart glass lamp collection