Large Antique English Dump Glass Sulphide Paperweight Disaeli or Gladstone Bust

Rough Dimensions: 4" diameter & 4-5/8" tall; weighs 4lbs
Makers Mark: unsigned
Condition:  Several scratches, flea bites and a couple bruises. Heavy shelf wear to the base with a 1-1/4" tooled pontil scar. Please see photos and let us know if you need any additional assistance. 
A rare large english dump with a bust of Benjamin Disaeli or William Gladstone encased in green glass.