Hi Anthony, Buck and Hickman have been on the go for around 180 years, and were the first major tool supplier in the country, their head office was once in Whitechapel Road, London. I have a couple of their old general catalogues, one from 1958 and one from 1964. In 1958 you could have got a carbon steel 1/4 BSP tap for 11 shillings and threpence, about 56p, or a ground thread HSS for 30 shillings and a penny, about £1:50, from them.
Regards Nick.