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Catalogue: Scientific and Medical (2)

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CALDWELL BOXFINDER COMPASS DIP NEEDLE LAND SURVEYING

Scientific and Medical: Pre 1960  stock# ST2055

CALDWELL BOXFINDER COMPASS DIP NEEDLE LAND SURVEYING
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Al's Past Treasures
(561) 734-2865



$50.00 

Here is an unusual, not often seen item. The vintage surveying tool reads "Caldwell Boxfinder Made in USA Geo A Caldwell Co. Boston Mass, Hold vertical with needle in north and south line move steadily near surface over the suspected area". Checking through Google I found this info. about this item: Another name for the boxfinder is "dip needle" since it gives an indication of the angle at which the earth's magnetic field "lines of force" intersect the horizonta ...click for details


OLD DRAFTING SET BY ALVIN CO. OF GERMANY MINT COND.

Scientific and Medical: Pre 1950  stock# S1157

OLD DRAFTING SET BY ALVIN CO. OF GERMANY MINT COND.
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Al's Past Treasures
(561) 734-2865



SOLD 

Offering this vintage drafting set by Alvin Co. of Germany. Set is complete and in excellent plus condition, not showing any wear. It is housed in a felt and fabric holder that is showing some wear but in very good condition and marked on the cover ALVIN made in Germany. Tools are marked "Alvin Co. Germany". Shipping weight is 2 pounds.

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