Science, Medical, Engineering

Sotheby's - London
Sale title - Important Clocks, Scientific Instruments and Watches  
Date - 19th March 1973
No. of lots - 268
No. of pages - 56, 10 plates
Illustrated in black and white

Sotheby's - London
Sale title - Clocks, Watches and Scientific Instruments
Date - 12th May 1975
No. of lots - 264
No. of pages - 37
Illustrated in black & white

Sotheby's - London
Sale title - Clocks, Scientific Instruments and Watches
Date - 22nd October 1976
No.of lots - 338
No.of pages - 44
Illustrated in black and white

some notes written...

Sotheby's - London
Sale title - Clocks, Scientific Instruments and Watches
Date - 28th January 1977
No.of lots - 265
No.of pages - 39
Illustrated in black and white

writing on some...

Sotheby's - London
Sale title - Good Watches, Scientific Instruments and Clocks
Date - 25th October 1979
No. of lots - 386
No. of pages - 77
Illustrated in black & white and 4 colour plates

Sotheby’s - London Sale title - Scientific Instruments, Good Watches and Clocks
Date - 26th July 1979
No. of lots - 247
No. of pages - 51
Illustrated in black and white

crease on front cover

Sotheby's - London
Sale title - Good Watches, Scientific Instruments and Clocks
Date - 1st May 1980
No. of lots - 298
No. of pages - 65
Illustrated in black & white and 1 colour plate