Etat general des troupes portugaises, 1759

Portugal army in 1759 consisted of 21 infantry, 6 cavalry, 4 dragoon, 3 artillery & 2 marine regiments, totaled 16 672 men (link). Some illustrations of their uniforms you may find on Alfonso Canovas's site (link). The 1759's data differed from the later of 1762, which present on Kronoscaf site (link).

Etat general des troupes portugaises sur pié en 1759Augsbourg, 1759 VD-18 Projekt (link)