[SOLVED] Heavy, thick, solid brass piece. Artillery?
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Thread: Heavy, thick, solid brass piece. Artillery?

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  1. #1

    Dec 2018
    146 times
    All Types Of Treasure Hunting

    Heavy, thick, solid brass piece. Artillery?

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    I found this while metal detecting a site that has seen Army encampments dating from 1850s thru post WWI. It is very heavy. Any guesses?
    Lenrac2 and crashbandicoot like this.

  2. #2
    Oct 2006
    Herndon Virginia
    Minelab Equinox 600, EX II, & Musketeer, White's Classic
    11990 times
    Metal Detecting
    Reminds me of a sand blasting tip.

  3. #3
    Charter Member
    Sep 2020
    2678 times
    All Types Of Treasure Hunting
    Uh,how,m I doin.
    USNFLYR likes this.

  4. #4

    Feb 2006
    Occupied CSA (Richmond VA)
    White's 6000, Nautilus DMC-1, Minelab
    11274 times
    Relic Hunting
    USNFLYR, your guess that your "heavy solid brass" find is an Artillery relic is correct. Specifically, it is a US Army artillery "driven" (not threaded) Seacoast Defense Watercap (waterproof-cap) fuzeplug. The screw-in waterproof cap (a thick brass disc with threading on its sides -- see photo below) is missing from your fuzeplug.

    Your find was manufactured during the 1850s through 90s.... but of course, very few were made before or after the war. The army artillery Driven Seacoast fuzeplug came in two sizes. The version you found is the smaller size, made for use in 12-Pounder (4.62"-caliber) through 32-Pounder (6.4"-caliber) cannonballs. It was not used in cylindrical-bodied shells, just in cannonballs.

    The term Seacoast Defense referred to major harbor fortifications and their defensive artillery, which was operated by the Army. The US Navy had its own version of Watercap fuze... which had a threaded body, for screwing into a shell's fuzehole. Your "driven" fuze is shaped like a cork, so it could simply be hammered (driven) into a non-threaded tapered fuzehole.

    Although the larger size of brass Driven Seacoast fuzeplug is quite rare, your small version is even more rare. If it wasn't missing its watercap (disc), it would be worth about $500. You might want to hunt the spot where you found it VERY carefully, in case the missing brass watercap disc is nearby. Was there any civil war combat at that location?

    To help you recognize the watercap, here's a photo. It is the brass disc at upper right. The two holes on the rim are spanner-wrench holes, for screwing the disc into the fuzeplug's main body. The smaller holes in the disc's recessed center allowed flame from the cannon's propellant powder blast to penetrate the waterproof disc and ignite the paper-bodied timefuze inside the fuzeplug's main body. (Actually, the one in the photo is the Confederate version, because I do not have a photo of the yankee version, which looks very similar.)
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    Last edited by TheCannonballGuy; Sep 14, 2021 at 01:37 AM. Reason: Clarification.
    "Let The Christ be a light to you in dark places, when all other lights go out."

  5. #5

    Dec 2018
    146 times
    All Types Of Treasure Hunting
    Mr (THE) CannonballGuy:

    Again I want to thank you for your informative and timely response. You remain one of the reasons I read this forum, as your guidance and expertise broadens my education about the Civil War.

    I'll certainly strike out to area where I found this this fuse and search for the missing disc.





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