880

PATENT MODEL: GROUPING OF FOUR

Currency:USD Category:Toys & Hobbies Start Price:200.00 USD Estimated At:400.00 - 600.00 USD
PATENT MODEL:  GROUPING OF FOUR
Lot 880 PATENT MODEL: GROUPING OF FOUR 1) R. S. Jennings, Reversible Filter, original patent tag, number legible, patented November 16, 1880. SIZE: 4” h x 3” d. CONDITION: good. 2) Air Filter. Mostly copper model with a fitting on each end. SIZE: 18” l x 6” d. CONDITION: Good. 3) Rotating Filter. Fragment with original patent tag, present patented 1872, round wooden drum model with a tin screen along the exterior and a brass rod through the center. SIZE: 4" d. CONDITION: Good. 4) Charcoal Filter Device. Inventor- Buhring. Mostly metal model cylindrical shape with a brass shaker type cap to top. SIZE: 10” h x 3" d. CONDITION: Good. 1-489 (400-600)