Tianjin 6508 Wireless and Electro-technician pocket 5" (short version of 6504)

Country of manufacture: China,            Date of manufacture: ____
Overall length: 18.3 cm,          Width: 3.9 cm,           Weight: 48.0 gms
Materials: plastic slide and stators, glued-on plastic end braces
Cursor: 2.6 X 4.8 X 0.7 cms; metal runners holding plastic lens, adjustable; lines = three hairlines on front, one on back
Scales: 23, no extensions
Front: T1, T2, K, A [ B, F, CI, C ] D, L, S
Back: LL01, LL02, LL03, SG [ SG2, SG2', C, R1 ] R2, LL3, LL2, LL1
Gauge Marks: [ π, e, 1/e, ρ'', ρ' ]
Condition: C3-C4 (Very Minimal to Minimal signs of use)
Came with: Original blue plastic pocket slipcase, instruction booklet