Penciled on back - Glasshouse at Levin Horticultural Research Centre in use with new controller which automatically operates the temperature system. Sat. May 29, 1971.
Stamped on back with black ink - Horowhenua Historical Society. Acc. No. 137 Date.
See also – #.0354 (Dr White, Levin Horticultural Research Centre).
Glasshouse ventilation / temperature mechanisms, 1971 1 B&W photo print
Glasshouse at Levin Horticultural Research Centre in use with new controller which automatically controls the temperature system. The mechanisms shown, open & close the glasshouse vents as part of the temperature control system.
See also – #.0354 (Dr White, Levin Horticultural Research Centre).
Any use of this image must be accompanied by the credit “Horowhenua Historical Society Inc.”
