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Antique Ivory Ruler - How the Hell does this thing work!?
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<p>[QUOTE="Shangas, post: 186812, member: 360"]Honestly, I've given up on this thing! I turn to you folks for assistance!</p><p><br /></p><p>I bought this last week at the local flea-market, as an accessory for one of my writing slopes (some folks here might remember that I collect them). Anyway, I'm trying to understand what the heck this thing is, and exactly how it works and why it's set out the way that it is! Nobody I asked could give me an answer. I've never seen anything like it, and I have seen a LOT of antique ivory rulers!</p><p><br /></p><p><img src="https://s-media-cache-ak0.pinimg.com/originals/3e/c4/69/3ec469de06caeb01d73f80a3af60959d.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p>It is 12 inches long.</p><p><br /></p><p><img src="https://s-media-cache-ak0.pinimg.com/originals/23/5d/4d/235d4d72534ed79bbdab51152f0b3e34.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p>It was sold by <b><u>F. Robson & Co., 46, Dean Street, Newcastle-on-Tyne</u></b>, in England.</p><p><br /></p><p>I have researched F. Robson & Co. It's still around...and it's still in N-o-T. Its field of business is optical equipment. It was established back in 1867, and once made all kinds of measuring devices - rulers, slide-rules, barographs, folding rulers, etc, etc.</p><p><br /></p><p>This is the company's current website:</p><p><br /></p><p><a href="http://www.robsonopticians.co.uk/" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.robsonopticians.co.uk/" rel="nofollow">http://www.robsonopticians.co.uk/</a></p><p><br /></p><p>That is as much as I've found out. <b>Now, here's the puzzling bit.</b></p><p><br /></p><p>This ruler measures INCHES. But the markings on the ruler are NOT IN INCHES.</p><p><br /></p><p><b>They are markings for...: </b></p><p><br /></p><p>3/8th inches.</p><p>1/2 inches.</p><p>1/4 inches.</p><p>1/8th inches.</p><p>3/4 inches.</p><p><br /></p><p>And there's more measuring markings, which I can't read. There's four on each side of the ruler, two at each end, and two lines of measurement on each edge of the ruler, on both sides. I would photograph them, but they're almost impossible to read.</p><p><br /></p><p>What I want to know is - WHY? Why is it set out like this? What's the purpose? I've never seen anything like this!</p><p><br /></p><p>I have emailed the company and await a reply. See if they can dig up a reason or any information...[/QUOTE]</p><p><br /></p>
[QUOTE="Shangas, post: 186812, member: 360"]Honestly, I've given up on this thing! I turn to you folks for assistance! I bought this last week at the local flea-market, as an accessory for one of my writing slopes (some folks here might remember that I collect them). Anyway, I'm trying to understand what the heck this thing is, and exactly how it works and why it's set out the way that it is! Nobody I asked could give me an answer. I've never seen anything like it, and I have seen a LOT of antique ivory rulers! [IMG]https://s-media-cache-ak0.pinimg.com/originals/3e/c4/69/3ec469de06caeb01d73f80a3af60959d.jpg[/IMG] It is 12 inches long. [IMG]https://s-media-cache-ak0.pinimg.com/originals/23/5d/4d/235d4d72534ed79bbdab51152f0b3e34.jpg[/IMG] It was sold by [B][U]F. Robson & Co., 46, Dean Street, Newcastle-on-Tyne[/U][/B], in England. I have researched F. Robson & Co. It's still around...and it's still in N-o-T. Its field of business is optical equipment. It was established back in 1867, and once made all kinds of measuring devices - rulers, slide-rules, barographs, folding rulers, etc, etc. This is the company's current website: [URL]http://www.robsonopticians.co.uk/[/URL] That is as much as I've found out. [B]Now, here's the puzzling bit.[/B] This ruler measures INCHES. But the markings on the ruler are NOT IN INCHES. [B]They are markings for...: [/B] 3/8th inches. 1/2 inches. 1/4 inches. 1/8th inches. 3/4 inches. And there's more measuring markings, which I can't read. There's four on each side of the ruler, two at each end, and two lines of measurement on each edge of the ruler, on both sides. I would photograph them, but they're almost impossible to read. What I want to know is - WHY? Why is it set out like this? What's the purpose? I've never seen anything like this! I have emailed the company and await a reply. See if they can dig up a reason or any information...[/QUOTE]
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