light spring

1953~1962

triple beam balance

1953~1962

Ballistic pendulum

1953~1962

triple beam balance

1953~1962

Shunt

1931~1945

Wheatstone bridge

1953~1962

Wooden class schedule from curriculum division

1956

Automotive transmission system

SPOONBILL-100

Torsion balance

1953~1962

CURVE PLATE

Medal of defender, First Class

1945

Camera lens

Empty wooden box

1953~1962

Wooden class schedule from curriculum division

1956

Font 4

Medium NIEDERVOLT 2 Projector

cover of torsion balance

1953~1962

Font

chronograph

1964