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Case Auctions
Live Auction

2022 Summer Fine Art & Antiques (Day 2)

Sun, Jul 10, 2022 01:00PM EDT
Lot 1034

Faber Castell Mathema 2/84 Slide Rule & TR4 Scientific Calculator

Estimate: $300 - $400

Bid Increments

Price Bid Increment
$0 $10
$100 $25
$500 $50
$1,000 $100
$3,000 $200
$5,000 $500
$10,000 $1,000
$20,000 $2,000
$50,000 $5,000
$100,000 $10,000
Two (2) Faber Castell, Germany scientific items, including one (1) Mathema 2/84 Full Hyperbolic duplex slide rule, comprised of white plastic with a plastic cursor with hairlines and plastic edges held together with metal screws (12" L), and one (1) TR4 scientific slide rule calculator, comprised of black plastic with green, orange, off white, and grey buttons (6 3/4" L). Maker's marks to edge of slide rule cursor and front of calculator. Both include original cases. Both items 3rd quarter 20th century.

Condition

All items in overall good condition. Slide rule case with wear, does not completely close. Calculator not tested for functionality, requires a new battery charger.