Set of three old car parts, vintage scale models

Set of three old car parts, vintage scale models, ± mid 20th century.

German educational classroom cutaway scale models, PHYWE auto engineering school, 1950s, cast aluminum models with steel and plastic parts on three different but matching feet, marked: Ignacio Sanz Rodrigo

It includes:

A scale model combustion engine; diameter cylinder

A scale model crankshaft with pistons

A scale model wheel suspension

All three marked:
Ignacio Sanz Rodrigo

price for the set of 3