Gunner's Protractor

fernando · 6th May 2014, 04:31 PM

Oh Man, i love this device; it's rather appealing, with its scientifical look.
Have you been here, Greg :
http://www.bonhams.com/auctions/14627/lot/359/
From here i'd say yours is a genuine Dean example.
Did you look at the prices ?

sabertasche · 6th May 2014, 04:42 PM

Fernando, thanks for the FAST reply. The price !!!!! WOW!!

I Goggled for some time and came up with minimal useful links, I didn't think to look at the auction houses.

Geg

fernando · 6th May 2014, 04:59 PM

Quote:

Originally Posted by sabertasche

Fernando, thanks for the FAST reply...

Don't mention it ... brother

M ELEY · 6th May 2014, 06:45 PM

Spectacular piece! Not only for its weapons appeal, but scientific as well! i just sold an 18th c. graphometer that I'm sick over (

), but bills are bills. I think pieces like this highlight a collection, even if they are not strictly arms/armor. Sometimes, it is the 'acutrements' that help highlight a collection! Hey, perhaps I'll start another thread with some such pieces...

fernando · 6th May 2014, 07:09 PM

Quote:

Originally Posted by M ELEY

... Hey, perhaps I'll start another thread with some such pieces...

Just get started, Capitão

Marcus den toom · 6th May 2014, 07:22 PM

I think it has a chart that tells you the density of certain items per square inch.. like seawater.
In the european chart this would be 1,024 cm3 .

the other numbers.. maybe some sort of way to calibrate your sights, but i never saw something like this before.

fernando · 6th May 2014, 08:24 PM

Guys, the person in question is William Deane (first half 18th century) ... and apparently not from the Deane & Dean gun traders family.
He was an expert in precision devices, like gunner's calipers and other.
The following id the description of a device of one of those:

A brass pair of William Deane gunner's callipers, English, first half 18th century, signed William Deane Fecit, the callipers with inset steel points slide over each other to allow both internal and external measurements to be taken, the upper face with geometrical shapes, scales of quantity measures, proof and service, and sector scales 0-100 the reverse with scales for 'cubic feet of metal &c in pounds and Decimals Adverdupois & Inches of ye same in Ounces and Decimals 12inch linear scale, size and weight of guns scale. The hinge with direct reading scales for the width of the opening in inches and degrees together with a 19th century 6-inch ivory yellowed sector., length closed 15.2cm 6in

6th May 2014, 04:31 PM	#1
fernando (deceased) Join Date: Dec 2004 Location: Portugal Posts: 9,694	Oh Man, i love this device; it's rather appealing, with its scientifical look. Have you been here, Greg : http://www.bonhams.com/auctions/14627/lot/359/ From here i'd say yours is a genuine Dean example. Did you look at the prices ?

6th May 2014, 04:42 PM	#2
sabertasche Member Join Date: Feb 2006 Location: Vancouver, BC Posts: 149	Fernando, thanks for the FAST reply. The price !!!!! WOW!! I Goggled for some time and came up with minimal useful links, I didn't think to look at the auction houses. Geg

6th May 2014, 06:45 PM	#4
M ELEY Member Join Date: Dec 2004 Location: NC, U.S.A. Posts: 2,184	Spectacular piece! Not only for its weapons appeal, but scientific as well! i just sold an 18th c. graphometer that I'm sick over ( ), but bills are bills. I think pieces like this highlight a collection, even if they are not strictly arms/armor. Sometimes, it is the 'acutrements' that help highlight a collection! Hey, perhaps I'll start another thread with some such pieces...

6th May 2014, 07:22 PM	#6
Marcus den toom Member Join Date: Jun 2013 Location: Netherlands Posts: 535	I think it has a chart that tells you the density of certain items per square inch.. like seawater. In the european chart this would be 1,024 cm3 . the other numbers.. maybe some sort of way to calibrate your sights, but i never saw something like this before.

6th May 2014, 08:24 PM	#7
fernando (deceased) Join Date: Dec 2004 Location: Portugal Posts: 9,694	Guys, the person in question is William Deane (first half 18th century) ... and apparently not from the Deane & Dean gun traders family. He was an expert in precision devices, like gunner's calipers and other. The following id the description of a device of one of those: A brass pair of William Deane gunner's callipers, English, first half 18th century, signed William Deane Fecit, the callipers with inset steel points slide over each other to allow both internal and external measurements to be taken, the upper face with geometrical shapes, scales of quantity measures, proof and service, and sector scales 0-100 the reverse with scales for 'cubic feet of metal &c in pounds and Decimals Adverdupois & Inches of ye same in Ounces and Decimals 12inch linear scale, size and weight of guns scale. The hinge with direct reading scales for the width of the opening in inches and degrees together with a 19th century 6-inch ivory yellowed sector., length closed 15.2cm 6in