I bought a ’50s index card ‘outfit’ a few years ago: that is, a Winel brand flip-top card-box, some alphabetical separators and a couple of hundred Whitehall 6"x4" cards. As well as the blank cards, there were a dozen typewritten ones left there by the set’s original owner, one for every month of the year, with major household expenses listed on each one.
The most significant expense through the year, described as ‘Building Society’ (presumably a monthly mortgage payment) was for £78 (£6 10s x 12). Besides that, the largest single amounts were for the annual rates bill (£29 18s 6d) and a fairly hefty £16 1s 3d for car insurance. The ‘A.P.S.W. Subscription’ on the January card suggests a membership of the Association for Professors of Social Work. Also in the box were a few pieces of professional correspondence all addressed to a Miss M_______ based near Sleaford, Lincs., who I imagine must have typed out the cards. These letters are all dated 1957, so I guess the cards most likely relate either to that year, or to 1958.