Reference
BTC6/5
Title
35mm transparencies.
System of arrangement
The slides were originally catalogued amongst the prints and numbered as part of that running sequence. The slides have been kept in original numbered order as this reflected the processing of a particular slide film and therefore distinct periods of collection and subject matter . Not all slides survive in those that only duplicated a print were not kept. Any gaps in the numbering sequence either show a change from slides to prints in the original catalogue or that those slides do not survive.
Level of description
series