Awesome Early Free Blown Glass Sparking Lamp with Gaffer's Finger Loop !!! Has a Glass Disc Footed Base with Pontil Scar. Ca. 1825 to 1840.
Attribution : Early Sandwich,MA.USA. Glass due to Early Free Blown Form !
Cylindrical top & bottom Form, with smooth top opening for the "Drop-In Tube Burner", being a single Tin Tube with a Cork tension fitted whale Oil Burner.The Cork diameter is 3/4 inches across the glass opening. This Lamp Lamp is earlier than the illustrated Book example, which has the later post 1830's Pewter Collar & Burner.
See Glass Book Ref.: "American Glass"
By : George & Helen McKearin
Description Page : 378
illustrated example : Plate 189
Matching Glass Lamp : illustration # 11 (later post 1830's example with Pewter Collar)
Burner Book Ref.: A Guide to Sandwich Glass / Whale Oil Lamps & Accessories. Burner illustrations :Introduction, and Plates #2049 & #2050.
Condition : Heavy Quality Leaded Blown Glass with a Superb Finger Loop. Has 1 common Heat Check,or Fracture,on the top of the fount, just above the finger loop, from glass cooling at different temperatures. Hard to see, but seen in photo # 6.
Still a Rare & Amazing Survivor of Craftsmanship !