Russell W. Porter's Drawings of the 200" Hale Telescope

The Dome	Interior Overview	Looking North
Prime Focus Cage	Prime Focus, Cassegrain, and Coude Mirrors	Inside Prime Focus Housing
Mirror Support Cover	Mirror Supports (Detail Drawing)	Coude Mirror and Crane
RA Drive and Computer	South Polar Axis Bearing and RA Drive	South Polar Axis Bearing and Oil Flotation
North Polar Axis Bearing	Declination Trunnion	Declination Drive and Control Mechanism

Cassegrain Focus Platform	Aluminizing Chamber
48" Schmidt	48" Schmidt Cutaway

Updated: 1 February 2002