- 1Serving The World (YA1996.2537)
1st February 1958, item - 2Leading the World (YA1996.2539)
March 1959, item - 3Slides showing dairy heat pump equipment (2022-590/6/1)
1954 - 1976, file - 4Slides taken by A S Cromarty (2022-590/6/2)
? 1961, file - 5Images of dairy heat pumps and heat recovery units (2022-590/6/3)
1959 - 1978, file - 6Photographs of dairy heat pump equipment (2022-590/6/4)
c 1959 - c 1975, file - 7Photograph album relating to dairy heat pump research (2022-590/6/5)
1958 - 2018, item
