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Old spectroscope https://gemologyonline.com/Forum/phpBB2/viewtopic.php?f=58&t=18017 |
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Author: | rbc [ Mon Apr 08, 2013 10:14 am ] |
Post subject: | Old spectroscope |
Very interesting spectroscope ![]() "Wallace Spectroscope Central Scientific Co Chicago" http://www.ebay.com/itm/c19th-Wallace-s ... 1211230683 |
Author: | G4Lab [ Tue Apr 09, 2013 1:09 pm ] |
Post subject: | Re: Old spectroscope |
Built in Indiana in the 1950s not old the way the seller says. Very serviceable and decently made. Last price was only about $150. Probably diffraction grating. Adjustable slit. I have not had one of this exact model in my hands but have seen a number of later ones from these folks that were DG models. Would be just fine for gemology especially if bought for the right price. ![]() ![]() I think I would rather pay $25 than $45. |
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