There are lots of ways to crack this nut. Some nice illustrations of surviving casement windows and early sashes with diamond panes and window leads are provided in Abbott Lowell Cummings' book, The Framed Houses of Massachusetts Bay, 1625-1725.
RV
Richard Veit, Ph.D., R.P.A.
Professor and Chair
Department of History and Anthropology
400 Cedar Ave.
Monmouth University
West Long Branch, NJ 07764-1898
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732-263-5699
-----Original Message-----
From: HISTORICAL ARCHAEOLOGY [mailto:[log in to unmask]] On Behalf Of Jim Gibb
Sent: Thursday, February 22, 2018 5:04 PM
To: [log in to unmask]
Subject: Re: Lead window cames
It may be worth doing, but I would draw a sample, recalculate the various measures of central tendency and graph them as you go, and look for that point at which those measures stabilize. Then look at the raw data and distributions for each variable and see if the measurements actually say anything useful, keeping in mind the design tolerances under which glaziers operated. I bet a millimeter or two variance, even if you have a bimodal distribution, will not be meaningful. Unfortunately, very few of the dies from the extruders likely survive...they would be worth measuring.
Jim Gibb
Gibb Archaeological Consulting
Annapolis, MD
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410.693.3847
-----Original Message-----
From: Keith Doms <[log in to unmask]>
To: HISTARCH <[log in to unmask]>
Sent: Thu, Feb 22, 2018 4:28 pm
Subject: Re: Lead window cames
But if you open them up to read them you should be able to measure an arm and the height. Something that I never thought about doing until now.
Keith R. Doms
Newlin Grist Mill
Site Manager
219 S. Cheyney Rd.
Glen Mills, PA 19342
(610) 459-2359
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-----Original Message-----
From: Jim Gibb [mailto:[log in to unmask]]
Sent: Thursday, February 22, 2018 4:16 PM
To: [log in to unmask]
Subject: Re: Lead window cames
We don't measure them at my operation. My sense of them, having looked at many, is that there is little measurable variability when we take the crushed, soft lead into consideration. Virtually all I have seen date (by association or marked date) to the second half of the 17th and first quarter of the 18th century.
Jim Gibb
Gibb Archaeological Consulting
Annapolis, MD
[log in to unmask]
410.693.3847
-----Original Message-----
From: Keith Doms <[log in to unmask]>
To: HISTARCH <[log in to unmask]>
Sent: Thu, Feb 22, 2018 4:09 pm
Subject: Lead window cames
Here is question about window leads. Has anyone out there recorded the widths and dimensions of window leads? I have opened them up to read the insides but don't ever remember trying to record the functional dimensions of the cames. I am now charged with reproducing mid 18th C windows but my references have no measurements. Anyone?
Keith R. Doms
Newlin Grist Mill
Site Manager
219 S. Cheyney Rd.
Glen Mills, PA 19342
(610) 459-2359
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