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Using vertical collimator to center equipment at top of left-most pole...

Using vertical collimator to center equipment at top of left-most pole over survey mark. Photo

Swedish pole just separated from rotating bracket on special truck rac...

Swedish pole just separated from rotating bracket on special truck rack. Photo

Swedish poles after being erected from special truck rack.

Swedish poles after being erected from special truck rack. Photo

Swedish pole mounted on special truck rack which allowed one person to...

Swedish pole mounted on special truck rack which allowed one person to set up pole. Photo

Swedish pole showing equipment mounted on moveable arm with electrical...

Swedish pole showing equipment mounted on moveable arm with electrical power provided by truck battery. Photo

Swedish pole used to show light and mirrors in the lowered untelescope...

Swedish pole used to show light and mirrors in the lowered untelescoped position. Photo

Open house in Cabool, Missouri

Open house in Cabool, Missouri Photo

Looking down on the observing platform and top of the inner ("red") to...

Looking down on the observing platform and top of the inner (

Looking from the observing platform upward to the light plate

Looking from the observing platform upward to the light plate Photo

Looking up the inside of a Bilby tower to the bottom of the observing...

Looking up the inside of a Bilby tower to the bottom of the observing platform. Photo

Looking down through the "red" inner tower of a Bilby tower towards co...

Looking down through the

Lois Leigh climbing Bilby Tower.

Lois Leigh climbing Bilby Tower. Photo

Tower building crew from party G-19

Tower building crew from party G-19 Photo

Anita Whitis conducting leveling operations at the White House

Anita Whitis conducting leveling operations at the White House Photo

Rodman "Bill" set up over a recessed mark.

Rodman

Anita Whitis testing the prototype motorized leveling unit at Corbin,...

Anita Whitis testing the prototype motorized leveling unit at Corbin, Virginia, in December 1978 Photo

Setup during testing of prototype motorized leveling unit at Corbin, V...

Setup during testing of prototype motorized leveling unit at Corbin, Virginia, in December 1978 Photo

Setup during testing of prototype motorized leveling unit at Corbin, V...

Setup during testing of prototype motorized leveling unit at Corbin, Virginia, in December 1978 Photo

Anita Whitis moving the instrument up after completing readings on lev...

Anita Whitis moving the instrument up after completing readings on level rods Photo

Anita Whitis running the gun and Bob Gex recording during leveling ope...

Anita Whitis running the gun and Bob Gex recording during leveling operations at Niagara Falls Photo

Chief of leveling party, Dan Frazier, working in the office.

Chief of leveling party, Dan Frazier, working in the office. Photo

Leveling operations

Leveling operations Photo

Digging out snow to find the mark for observing an astro station in wi...

Digging out snow to find the mark for observing an astro station in winter. Photo

Lois and Eric Leigh tending light at Bald Hill, Connecticut

Lois and Eric Leigh tending light at Bald Hill, Connecticut Photo

Thirty-seven foot tower on hill-top in Connecticut.

Thirty-seven foot tower on hill-top in Connecticut. Photo

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