Tianjin 6502 pocket rule

Country of manufacture: China,            Date of manufacture: ____
Overall length: 15.7 cm,          Width: 3.2 cm,           Weight: 20.5 gms
Materials: all plastic, glued-on end braces
Cursor: 2.0 X 4.0 X 0.6 cms; all plastic; lines = one hairline on front, one on back
Scales: 16, no extensions
Front: SG, A [ B, T, ST, S ] D, DI
Back: K, DF [ CF, CIF, CI, C ] D, L
Gauge Marks: [ π ]
Condition: C3 (Very minimal signs of use)
Came with: Blue plastic pocket slipcase, instruction booklet (Chinese)