Tube 93: RGO 101/1/TA/V, W & X
Container
Contains 1 Result:
Sub-Series
TA: PZT [Photographic Zenith Tube] Drawings, c.1955-1984
Sub-Series
Reference Code: GBR/0180/RGO 101/1/TA
Scope and Contents
A set of drawings of the Photographic Zenith Tube [PZT], originally rolled together and labelled, 'TA PZT [Photographic Zenith Tube], 1st system Nos. not m/f'. They include drawings of V, W, X, Y and Z sized sheets, Z being the smallest.A PZT is a specialised transit telescope with which the latitude and longitude of its position can be measured with a precision of a few hundredths of a second of arc and a few milliseconds of time respectively. Its main uses by the Royal...
Dates:
c.1955-1984
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).