Model force pump by Glass Developments Ltd., London SW2, made of glass and mounted on a wooden stand with porcelain reservior Model force pump by Glass Developments Ltd, 1950-1970
Rail profile set, cased, for flat-bottomed rail, by Glass Developments Ltd, London c.1955. Rail profile set
Rail profile set, cased, for bullhead rail, by Glass Developments Ltd, London c.1955. Rail profile set