King & Harper Ltd
The cycle hire business is still going strong in Cambridge. Not sure where you would hire a radio from these days though.
Illustrated Guide to Cambridge - 1953 guidebook bought by my father on a National Coal Board management school at Jesus College in the 50s.
The title page reads in full:
Guide to Cambridge
With illustrations of every College and Important Building
by Frank Rutter
Thirteenth edition (4th impression)
revised by F. Brittain, Litt.D. Fellow of Jesus College