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Subject:
Re: [MARKETING] Artifact Identification and Additional Information
From:
Timothy Scarlett <[log in to unmask]>
Reply To:
HISTORICAL ARCHAEOLOGY <[log in to unmask]>
Date:
Thu, 26 Oct 2023 15:46:49 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (133 lines) 
For the graphite rods-

Either arc lamp electrodes, which are pointed on one end and wear down over time as they burn….
https://edisontechcenter.org/ArcLamps.html
https://sciencekitstore.com/carbon-electrode-graphite-rod-10-mm-x-100-mm/

Or dry battery carbon rod cores (cathode)….
https://www.thealamo.org/support/preservation/updates/carbon-battery-core
https://knowledge.electrochem.org/encycl/fig/c01/c01-f03b.gif

This type of artifact has been discussed many, many times on the HISTARCH listserve. You can see them in the archive here:
https://community.lsoft.com/scripts/WA-lsoftdonations.exe?A0=HISTARCH
The interaction with the HISTARCH Archives is odd and takes some experiments, but you’ll get many pages of posts with useful information.

Tim







> On Oct 26, 2023, at 3:27 PM, Palich, Kelly <[log in to unmask]> wrote:
> 
> Or, as Mitzi said, the electric graphite rods (I can't tell the size by the picture).  I do know that they would often be sharpened and reused as a writing implement.
> 
> Kelly
> 
> Kelly M. Palich MA, CIG
> Archaeologist/Program Coordinator
> Historic and Cultural Resources Section
> Howard County Department of Recreation and Parks
> [log in to unmask] <mailto:[log in to unmask]>
> (410) 313-0423
> ________________________________
> From: HISTORICAL ARCHAEOLOGY <[log in to unmask] <mailto:[log in to unmask]>> on behalf of Mitzi Rossillon <[log in to unmask] <mailto:[log in to unmask]>>
> Sent: Thursday, October 26, 2023 3:25 PM
> To: [log in to unmask] <mailto:[log in to unmask]> <[log in to unmask] <mailto:[log in to unmask]>>
> Subject: [MARKETING] Re: Artifact Identification and Additional Information
> 
> [Note: This email originated from outside of the organization. Please only click on links or attachments if you know the sender.]
> 
> 
> The rods are carbon rods (electrodes)  used for arc lighting:
> 
> "In a carbon arc lamp, the electrodes are carbon rods in free air. To
> ignite the lamp, the rods are touched together, thus allowing a relatively
> low voltage to strike the arc. The rods are then slowly drawn apart, and
> electric current heats and maintains an arc across the gap."
> 
> On Thu, Oct 26, 2023 at 1:19 PM Stephanie A. O'Brien <
> [log in to unmask] <mailto:[log in to unmask]>> wrote:
> 
>> Hello all,
>> 
>> At the link below are several artifact photos of items we are seeking
>> identification of or additional information. These are all derived from an
>> urban refuse scatter in southeastern Washington state, likely dating from
>> 1880-1910 based on other artifacts. If you have any additional information
>> about what these are, how they were used, or when they date from, please
>> let me know. These include:
>> 
>> -A colorless glass item that looks a bit like a tumbler but does not appear
>> to have a base, perhaps a long lamp shade.
>> -A colorless glass item, possibly a decorative goblet stem
>> -A possible shell button but with no discernable holes (possibly a metal
>> shank was attached to the indented side?)
>> -A stoneware fragment with blue lettering
>> -An anchor button (any additional information about dating would be
>> helpful)
>> -Pieces of solid rods, some sharpened to a point, one with a hole in the
>> middle
>> 
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>> 
>> Thank you!
>> Stephanie
>> 
>> ########################################################################
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