Lópex i Lluch, A., Les Monedes de les Cooperatives Catalans, 1850-1950, Barcelona, 1983, 3 vols, 1506pp, fully illustrated throughout [3]. Green cloth, a very fine set without dust wrappers; important for the subject (£30-40)

Covers issues in metal, card and paper; includes not only agricultural co-operatives, but tokens of bars, industrial collectives, etc; important, particularly for the Civil War