Literature. Frazao, L.B., 'Pré-Filatelia Portuguesa, Estudo das marcas postais pré-adesivas de Portugal, Ilhas adjacentes e dominos ultramarinos (1799–1853)', 2012, paperback, 613 pp. AND 'Pré-Filatelia Portuguesa/ Portuguese Pre-Stamp Postmarks, Vol. 2', postmarks used in Azores, Madeira and the Portuguese overseas territories in the pre stamp period (1798–1886), 2013, bilingual Portuguese/English, hardcover, 255 pp., included Brazil, 45 pp. AND 'Pré-Filatelia Portuguesa/ Handstamps of Portugal and Colonies in the pre-stamp period (1798 to 1886), supplement to Volume I+II', 2016, bilingual, paperback, 129 pp., incl. 37 pp. on 'Colonies' (incl. Africa, Brazil, Goa, Macau, etc.) and about 90 pp. on Portugal. Sought-after and very useful set of books. Used in fine condition.
