A.A.M. Co. GOLDEN GEM (1904)
SCHUBERT & SALZER COMPTATOR (1909)
FABER CASTELL ADDIATOR (1939)
FABER CASTELL ADDIATOR (1939)
FABER CASTELL ADDIATOR (1939)
FABER CASTELL ADDIATOR (1939)
ARISTO ESTUDIO 0968 (1950)
NAV-COMP E6B FLIGHT COMPUTER (1950)
MAGIC BRAIN ADDIATOR (1968)
ABS REGLA CÁLCULO HIDRÁULICA (1995)