Duvaz  was an Argentinian make, located in Buenos Aires and existed only two years, from 1951-1952 Their products were sold exclusively by a Buenos Aires hobby shop, Raldua. Duvaz was founded by the brothers Carmelo and Higinio Duca and the brothers Julio, Alberto and Carlos Vasques, the company name being an contraction of the respective surnames. During its existence apparently 2000 freight cars, 40 passenger cars and 150 locomotives were produced. The cars were made of wood with corrugated aluminium roofs and were of a size compatible to Lionel 027. The loco, a 4-6-0, was modelled after the one Varney had produced in 1947. The cover illustration on some of the boxes looks like the contents would be a toy train in the vein of Thomas the Tank Engine, but the cars are actually very well made and prototypical.