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pulgada

A unit of length in Spain and its former dependencies, ¹⁄₃₆ vara.

Some 20ᵗʰ century values:

Colombia, Spain, Honduras, and Panama	2.32 centimeters (about 0.914 inch)
Costa Rica	2.322 centimeters [Costa Rica. Ministerio de formento.] Medidas y pesas del sistema mètrico, y tablas de equivalencia con las antiguas. San Josè de Costa Rica: Imprenta nacional, 1885.
Argentina, El Salvador, and the Philippines	= 1 inch, 2.54 centimeters (UN, 1966)
Mexico	2.328 centimeters (UN, 1966) Galván Riviera, 1844. Excerpt in Spanish with English translation.
Nicaragua	2.3 centimeters. (UN, 1966)
Paraguay	2.406 centimeters. (UN, 1966)