This file contains the individual analyses on multiple parts of brass scientific instruments (astrolabes, etc.) from 75 German instruments, 38 English instruments (including two clocks), 15 French, 15 Italian, 10 Dutch, 5 Flemish and 5 Spanish instruments, plus 5 Islamic astrolabes and a Byzantine calendrical device. These instruments are mainly from the collection of the History of Science Museum, Oxford University, and were analysed at the Research Laboratory for Archaeology and the History of Art, Oxford University by A.M. Pollard and Catherine Mortimer in the 1980s, with a few analysed by Francis Schweizer in the 1960s. There are also the individual results on five objects from the Barberini Collection of scientific instruments in the National Maritime Museum, London.
The individual results are unpublished, but the average results on each instrument were discussed in:
Pollard, A.M. and Heron, C., Archaeological Chemistry, Royal Society of Chemistry, Cambridge (1996), pp. 226-232 (2nd revised edition 2008; 3rd edn 2017).
