Manufacturer: Aston & Mander
Country of Manufacture: England
Type: Aston Applied Observation of Fire Rule Mk VI
Date of Manufacture: 1915
Scales: (Front) A [B]
Scales: (Back) A [S]
Number of Scales: 4
Gauge Points: 1146 (The gunner's mark = (180 * 60) / (3 * π))
Slide Rule made from: Steel
Cursor made from: Steel
Cursor Lines: 0
Overall Length of Rule: 46.8 cm slide, 40.7 cm body
Length of Scales: 44.2 cm max
Width: 3.4 cm
Depth: 0.6 cm
Acquired from: Jeff Peterson
Date: June 2004
Condition: Good
 Leather case. Good condition.