Collection of 15 aluminium coated glass or quartz mirrors from the spectrograph used at the coude focus of the 35-Metre Solar Telescope built in 1955 at the University Observatory, Oxford, unsigned, 1960-1970.
One of 15 aluminium coated glass or quartz circular mirrors, 8-inch diameter and roughly 14 metre focal length, 1960-1970.
One of 15 aluminium coated quartz circular mirrors, 10-inch diameter and roughly 14 metre focal length in wooden case, 1960-1970.
One of 15 aluminium coated glass or quartz circular mirrors, 3.4-inch diameter, low expansion glass mirror of around 1.5 metre focal length, labelled, 'M3, 2 3/4 º, lamda/10 off axis paraboloid' in wooden case, 1960-1970.
One of 15 aluminium coated glass or quartz circular mirrors, 4-inch diameter, low expansion glass mirror of around 1.5 metre focal length, labelled, 'M4, 2 3/4 º, lamda/10 off axis paraboloid' in wooden case, 1960-1970.
One of 15 aluminium coated glass or quartz circular mirrors, 80-mm diameter, low expansion glass mirror of around 2 metre focal length, labelled, 'M2', 1960-1970.
One of 15 aluminium coated glass or quartz circular mirrors, 40-mm diameter, low expansion glass mirror in aluminium block mount of around 500-mm focal length, labelled, 'M5', 1960-1970.
One of 15 aluminium coated glass or quartz circular mirrors, 40-mm diameter, low expansion glass mirror in aluminium block mount of around 1,000-mm focal length, labelled, 'M6', 1960-1970.
One of 15 aluminium coated circular planar mirrors, 15-mm diameter, low expansion glass mirror in aluminium block mount with plastic cover, labelled, 'F0', 1960-1970.
One of 15 aluminium coated circular glass planar mirrors, 30-mm diameter, low expansion glass mirror in aluminium block mount with plastic cover, labelled, 'F1', 1960-1970.
One of 15 aluminium coated circular glass planar mirrors, 25-mm diameter, low expansion glass mirror in aluminium block mount with plastic cover, labelled, 'F2', 1960-1970.
One of 15 aluminium coated circular glass planar mirrors, 25-mm diameter, low expansion glass mirror in aluminium block mount with plastic cover, labelled, 'F3', 1960-1970.
One of 15 aluminium coated circular glass planar mirrors, 25-mm diameter, low expansion glass mirror in aluminium block mount with plastic cover, labelled, 'F4', 1960-1970.
One of 15 aluminium coated circular glass planar mirrors, 15-mm diameter, low expansion glass mirror in aluminium block mount with plastic cover, labelled, 'F5', 1960-1970.
One of 15 aluminium coated circular glass planar mirrors, 25-mm diameter, low expansion glass mirror in aluminium block mount with plastic cover, labelled, 'F6', 1960-1970.
One of 15 aluminium coated circular glass planar mirrors, 25-mm diameter, low expansion glass mirror in aluminium block mount with plastic cover, labelled, 'F7', 1960-1970.
Blank glass with coating on top
