Chemical Match Output

Number:15b

Maker:Didier-Stettin Keramik
PHOTO

Length: 32 cm

Gauge Marks: √(4/π) 4/π and others

Scales Front: Special Scales

Scales Back: Chemical Tables

Info: FanHsiu Collection
The cursor seems to be from D&P
This SR has FC 2/83 like W1 W2 scales and other percentage scales.
A1 = (W1-1) x 100%
S1 = (W1-1) / W1 x 100% No apparent relation between A2 and W or between S2 and W.
A2 S2 appear to be just enlarged A1 S1