Spain - 6 quarters from 1850-A. de Guezala (essential work)

Extremely challenging work by Antonio de Guezala on the 6 cuartos of 1850. With texts translated into German, English, French and Spanish. Study of the plates, postmarks, defects, retouchings, etc. The most complete work that exists on Spain's first stamp. Great opportunity. Very good condition for See photographs of a sample of the work.

Estimation:€1

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