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#1 |
Member
Join Date: Jun 2013
Location: Netherlands
Posts: 534
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This one is up for sale right now, it is signed and has a date on it 1753.
The dimensions are 55.4cm wide, 29cm high, 34.5cm deep so it is a bit smaller than mine and about 100+ years younger. ![]() |
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#2 |
Member
Join Date: Dec 2004
Location: NC, U.S.A.
Posts: 2,141
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Wow! That's a nice piece that would clean up very well! Too bad I am dead broke right now! Just picked up a nice navigational tool called a graphometer that set me back. Seeing your chest and this one though makes me want to make a Christmas list!!
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#3 |
Member
Join Date: Jul 2009
Posts: 607
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I thought graphometer was a land-surveying tool. How would you use it in navigation?
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#4 |
(deceased)
Join Date: Dec 2004
Location: Portugal
Posts: 9,694
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Also used aboard to measure by angle the position of objects on sea or points in land. Not exactly for navigation ... but (also) a naval utensile
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#5 |
Member
Join Date: Dec 2004
Location: NC, U.S.A.
Posts: 2,141
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I had to do a bit of research just to identify the piece, but Fernando hit it on the head. Mostly a 'land tool', but also used to find the 'lubber's line'? This mathematical stuff boggles my mind!
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#6 |
(deceased)
Join Date: Dec 2004
Location: Portugal
Posts: 9,694
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I know nothing of these things either ... or of any things at all
![]() It just came to my mind that many orientation devices are invented to serve in firm land and later adapted for naval or navigation use; such is the case of the extremely significant astrolabe. |
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#7 |
Member
Join Date: Dec 2004
Location: NC, U.S.A.
Posts: 2,141
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Excellent point,though,Fernando.The graphometer isn't used in navigation (my typo error), but could be used at sea in both an engineering capacity or possible military usage, such as for determining the best place to storm a coastline, etc. Off-topic,
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