Colin Haselgrove. Published by the Institute of Archaelogy, London. 1978.  Occasional Paper 11a.  PB (cream card covers) 140 pages. 182 x 248mm. ISBN 0905853040 Very good, clean secondhand.  Out of print.

This is a supplement to 'The origins of Coinage in Britain: A Re-appraisal', by the late Derek F. Allen's  'Problems of the Iron Age in Southern Britain' Institute of Archaeology Occasional Paper 11, 1960.