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Dominion Astrophysical Observatory, wall sealed with telescope inside
Polar axis ready to raise to pier, Dominion Astrophysical Observatory
Raising the polar axis on stacked four-by-fours, Dominion Astrophysical Observatory
Polar axis in place attached to piers, Dominion Astrophysical Observatory
Cross pieces added to the polar axis, Dominion Astrophysical Observatory
Telescope complete, Dominion Astrophysical Observatory
Workers resting after completing telescope, Dominion Astrophysical Observatory
Dr Plaskett with completed telescope, Dominion Astrophysical Observatory
Dominion Astrophysical Observatory in operation
Aerial view of the Dominion Astrophysical Observatory