Rough Dimensions: 3-3/8" diameter 2-7/8" tall
Makers Mark: Hand inscribed to the flat polished base, "Philabaum 90".
Condition: Excellent to near mint, under close scrutiny a few minor tub marks are discovered on the upper surface. Minor shelf wear to the base. Please see photos and let us know if you need any additional assistance.
An encased dichroic micro control bubble half twisted grid. A great example from an important contemporary artist.