Porter Garden Telescope
#3
(photos courtesy of Ross Brothers>
Details :
Manufacturer : Jones & Lamson, Springfield, VT
Designer : Russell W. Porter
Date : 1923-ish
Material : Statuary bronze, brass, glass
Optics : (missing)
Storage : mahogany box
Mirror : 6" f/4 paraboloid, silvered & lacquered
Maker : Wilbur Perry
Eyepieces
25x
50x
100x
Maker : Brashear
Diagonals
Single eyepiece right angle
Double eyepiece right angle
Diagonal maker : Brashear
Mirror cell : brass, with handle (missing)
Mirror cover : brass (missing)
Mirror cover design : lily pad with flower in center (missing)
Counterweight : lead
Eyepiece/diagonal : brass, with bolt
Sighting method : via two pins on back of stalk
Pier attachment method : via a baseplate (missing)
Height :
Weight : approx. 70lbs
Patents : #1468973
Applied for : 1922
Granted : 1923
page 1
page 2
page 3
page 4
page 5
Porter Watercolor of Garden Telescope
(still missing from Stellafane)
Smithsonian Garden Telescope
(on loan to Chabot)
Springfield Telescope Makers' Garden Telescope
Old photograph
Copyright 2002, Matt Considine