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| View Original: | Large magnet, by Van Wetterem Bros..JPG (1331x3158) | |||
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| Keywords: Large magnet, by Van Wetterem Bros..JPG Large magnet by Van Wetterem Bros Haarlem 1875 Seven-fold horseshoe magnet painted red after delivery magnetized by V S M van der Willigen head at the Physical Cabinet 1864-1878 It could bear 216 kg On the scale are four weights two at 25 and two at 20 kg's own 2011-12-23 13 56 08 AlfvanBeem Cc-zero Instruments in the Teylers Museum Culture photographed by Alf van Beem | ||||
