North American Auction Company
Timed Auction

Last Chance March Passed Lots Offering - Ends March 10th

Mon, Mar 6, 2023 02:00AM EST - Fri, Mar 10, 2023 03:00PM EST
Lot 223

"Bostrom #4 Contractors' Level" c. 1901-1920

Estimate: $750 - $1,500

Bid Increments

Price Bid Increment
$0 $5
$50 $10
$100 $25
$500 $50
$1,000 $100
$2,000 $250
$5,000 $500
$10,000 $1,000
$25,000 $2,500
$100,000 $5,000
For your consideration is an Antique "Bostrom #4 Contractors' Level", circa 1901 - 1920, with Stadia Hairs. Complete with wooden extention adjustable tripod, adjustable level, oak wooden carrying case, plum bob with the original instruction booklet for setting up and using. The original oak wooden carrying case has a fitted interior and has its original leather carrying strap attached. This item can actually be used but would be a fabulous display for any architect, engineer or contractor's office. The instrument was manufactured by the Bostrom-Brady Mfg. Co. and their original metal tag is attached to front of carrying case with Bostrom Surveying Instruments Model #4 and Serial Number 47 Bostrom-Brady Mfg. Co. in Atlanta GA. Ernst Alfred Bostrom (1855-1923) was a Swedish immigrant who worked as a machinist for the telephone company in Atlanta, Georgia. After enrolling with the International Correspondence School, he advanced to foreman and then to superintendent. He formed the Bostrom-Brady Manufacturing Co. in 1901 and began manufacturing a simple and inexpensive farm level of his own design. The Bostrom Convertible Level followed some years later, and could be used as either a transit or a level. The tripod measurements are 60.25"H x 3.75"W closed; level is 61.25"H x 1.75"W x 1.5" closed. The instrument measures 4.5"D x 5.5"W x 10.25"L. Carrying case measures 5.25H x 5.75"W x 11.75"L

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