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Project / Collection Boyden Observatory Archive Subject Death Level [41] Item

1. EAP1190/1/6/10/1

Reference (shelfmark):
EAP1190/1/6/10/1
Title:
The Sutherland observing site of the SAAO.
Scope & Content:
Typed caption in Afrikaans: "Die Suid-Afrikaanse nasionale Sterrewag by Sutherland waar die re-aluminisering gedoen is.". Translation: "The South African national Observatory at Sutherland where the re-aluminising was done.". PB14_0001 and PB14_0002 were part of a poster display titled: "Telesco...
Collection Area:
Endangered Archives Programme
Languages:
Not applicable
Date Range:
1891-1994
Extent:
1

2. EAP1190/1/6/10/2

Reference (shelfmark):
EAP1190/1/6/10/2
Title:
The Boyden 60-inch mirror being placed into a vacuum chamber.
Scope & Content:
Typed caption in Afrikaans: "Die spieël word in die groot vakuumkamer (vertikaal) geplaas. Nadat die vakuumkamer se 'deksel' opgeplaas is, word 'n pomptyd van ongeveer 32 ure benodig om die vereisde vakuum te bereik. Aluminimum [sic] word op verskeie plekke in die vakuumkamer verhit totdat Al-at...
Collection Area:
Endangered Archives Programme
Languages:
Not applicable
Date Range:
1891-1994
Extent:
1

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