escudo Refer Postage stamps and postal history of the Nyassa Company See also Nyassa Company References Bibliography Stanley Gibbons Ltd, Europe and Colonies 1970, Stanley Gibbons Ltd, 1969 Stanley Gibbons Ltd, various catalogues Stuart Rossiter & John Flower, The Stamp Atlas, W H Smith, 1989 XLCR Stamp Finder and Collector's Dictionary, Thomas Cliffe Ltd, c.1960 External links AskPhil – Glossary of Stamp Collecting Terms Encyclopaedia of Postal History Nisiros