Antique American Art Glass Photo Paperweight Maxwell? Graeser?

Rough Dimensions: 3-1/2” diameter & 2-3/8” tall

Makers Mark: unsigned

Condition: A few faint scratches to the upper dome, a chip and other small bruises to the side of the dome below the plaque. The entire lower third of the upper surface has been ground to a grit surface matching the flat base. Purple discoloring to the clear glass. Please see photos and let us know if you need any additional assistance. 

An antique American photo plaque encased in clear glass. The image is of a young man in a white collared shirt & tie.