British Slide Rule Company Supreme Slide Rule

Country of manufacture: England,            Date of manufacture: ____
Overall length: 30.4 cm,          Width: 4.9 cm,           Weight: 101.6 gms
Materials: Celluloid laminate over wood, closed form simplex
Cursor: 3.2 X 5.1 X 0.8 cms; all plastic, adjustable; lines = single hairline
Scales: 11, with extensions on A, B, C, D
Front: 10 in // M (LL2) , S, A [ B, CR, C ] D, T, N (LL3) \\ 27 cm
Slide Back & Well: Blank
Back: physical & mathematical constants, trig functions, conversion factors, physical properties
Gauge Marks: [ π, C (1128), Q" (2063), L: (2303), Q' (3438), C1 (3568), Q,, (6366), M (3138) ]
Condition: C7 (Small Damage but otherwise C4 or better: stiffner is partially broken)
Came with: Red cardboard case, seriously taped up