Object from: British Library on Flickr Commons.
Date: 1960-75 Place: Luton, England (Accession num: 1987-528/8)
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Headline: Honestly, it really is 6 inches
Summary: When folded, this telescope is 150mm, but it expands to 6 inches in length.
It can also be used during daylight. http://www.galaxypix.com/Dall/dall4.htm shows it in use - you look through the tube embedded in the reflector and point the extended end where you want to look.
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