Gray's Auctioneers
Timed Auction

From the Library to the Laboratory

Tue, Mar 24, 2026 04:00PM EDT - Wed, Apr 8, 2026 10:00AM EDT
Lot 4

Brunson teaching Surveyor's Auto-level.

Estimate: $100 - $200

Bid Increments

Price Bid Increment
$0 $10
$200 $25
$500 $50
$1,000 $100
$2,000 $200
$5,000 $500
$10,000 $1,000
Brunson teaching Surveyor's Auto-level, mid-20th Century. Patent No. 2208014
Mounted on laminated wood with labeld "eye end" for re-insertion to storage case. Designed to rest on table for teaching students how to use survey instruments, or for plane-table surveying.

H: 8 W: 16 D: 10 in.

Condition

Label on leveling mechanism with stadia hair conversions. Bubble and spirit levels accurate, and focus of telescopic lens in good working condition. Wooden case bumped and scuffed, commensurate with use.
Overall Dimensions
Height: 8.00
Width: 16.00

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From the Estate of John A. Davidson, Jr. Proceeds to benefit the APL of Lorain County and the Dittrick Museum.