Manufacturer: Aristo
Country of Manufacture: Germany
Type: 99k
Number: 42-4
Date of Manufacture: 1942?
Scales: (Front) cm/ K, A [B, CI, C] D, L
Scales: (Back) [S, ST, T]
Number of Scales: 10
Gauge Points: π,C , C1, p'', p', M
Slide Rule made from: Plastic
Cursor made from: Plastic (semi-spherical magnifier)
Cursor Lines: 4 including kW and PS
Overall Length of Rule: 29.9 cm
Length of Scales:
Width: 4.1 cm
Depth: 0.6 cm
Acquired from: Sven Wendelmuth
Date: Feb 2003
Condition: Good
 Faber Castell case. Poor condition.