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muffle
muffle

muffle

Datemid 19th-early 20th Century
Inventory Number4811
ClassificationMuffle
Subject
    Maker American ?
    Cultural Region
      Dimensions5.8 x 11 x 8 cm (2 5/16 x 4 5/16 x 3 1/8 in.)
      Material
        DescriptionEarthenware muffle, with a flat bottom and vaulted top. Closed at one end, with an irregular slit each closed side.
        Signedunsigned
        InscribedNumber on side: A135
        FunctionUsed in furnaces to protect heated objects from direct contact with fire, for example, in the cupellation of ore buttons.
        muffle
        muffle
        American
        Date: mid 19th-early 20th Century
        Object number: 4812
        muffle
        muffle
        American
        Date: mid 19th-early 20th Century
        Object number: 4809
        muffle
        muffle
        American
        Date: mid 19th-early 20th Century
        Object number: 4810
        Amsler's polar planimeter
        Amsler's polar planimeter
        American Steam Gauge Company
        Date: circa 1875
        Object number: 1996-1-0258
        Amsler's polar planimeter
        Amsler's polar planimeter
        American Steam Gauge Company
        Date: circa 1875
        Object number: 1999-1-0066
        silvered glass cover
        silvered glass cover
        American
        Date: 1920-1950
        Object number: 1997-1-1110
        spectrum tube
        spectrum tube
        American
        Date: 1890-1920
        Object number: 4854
        gallium chloride discharge tube
        gallium chloride discharge tube
        American
        Date: 1890-1920
        Object number: 4866
        airbrush
        airbrush
        American
        Date: 1920-1950
        Accessories: rectangular leather case
        Object number: 1998-1-0632
        box of accessories for Bromfield's solar microscope
        box of accessories for Bromfield's solar microscope
        English
        Date: circa 1745
        Object number: 1169c
        operant chamber
        operant chamber
        Scientific Prototype Manufacturing Corporation
        Date: 1960
        Accessories: manual: <i>Laboratory Studies in the Analysis of Behavior</i> by Homme and Klaus (1957)
        Object number: 2008-1-0003
        compensating polar planimeter
        compensating polar planimeter
        G. Coradi
        Date: circa 1911
        Accessories: conversion table on white card in instrument case; instrument case
        Object number: 1999-1-0068