Each of the small handful of old books listed below appears for sale so rarely you're unlikely to come across another copy. In most cases it would be difficult to find similar examples elsewhere in as nice condition, if at all.
1900 : Early work in the development of colour photography : £120
1913 : Dairy farming and supply prior to World War I : £110
1907 : Edwardian study of hay-fever and its treatment : £185
1936 : Fireplaces, cookers and stoves in the modern 1930s home : £125
1903 : Hay fever and homeopathy : £72
1945 : Torpedo engine with rotating disc-valves designed by Wankel : £275
1945 : Bachem B-349 Natter: world's first ground to air missile : £225
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