“CIBA”

Data:

• Slide rule “CIBA”
• Type: Darmstadt
• Material: White and yellow plastic of high quality
• Dimensions: 150 × 43 × 4,6 mm, Weight 34 g
• Scales: 12 cm / L K A = B CI C = D P S T, at the back: = LL1 LL2 LL3 =, advertising CIBA
• Cursor: missing
• With a leather pouch
• The slide rule is high-quality and very well-made.

Questions:

• Maker?
  It is a UTO Meine van Essen