This album contains 117 photos taken by my father on a guided walking tour of the Rhine Valley and Black Forest with my mother and other British tourists in summer 1936. It was a 16-day package tour by a UK travel company, costing £11 15s. per person plus fare supplements. My grandmother was unhappy about the risk that she felt my parents were taking in view of the fear of another war, but they went anyway and the holiday was a success. On their return, my father processed the photos, mounted them in the album and dated them with their locations.
At some time during World War II, my father learned of an appeal by the UK Government for anyone who had recent holiday photographs of Nazi-occupied parts of Europe to lend them for copying by British Intelligence. I don't know whether this was by a BBC broadcast or a newspaper advertisement, nor the address to which the album was sent. It was returned in July 1945, as the label shows. Although my father was a soldier in 1918, I don't believe that he was deliberately taking pictures of military value, either on his own initiative or by request. It would have been too risky and would have spoilt the holiday.