Taylor test kits

Does anyone know who suppliers a testing kit like/similar to the one
described below?  It was sold by the Taylor Chemical of Baltimore,
Maryland; but that company no longer exists.  The kit is used to test
the strength of solutions of Magnesium Bicarbonate for Deacidification
by titration for magnesium with ethylenediaminetetraacetic acid (EDTA).

    Taylor Total Hardness Set cat. #1123
    Taylor Magnesium Carbonate Drop Test Kit cat. #1597

Thanks,
Martha H. Jackson
Book/Paper Conservator
Johns Hopkins University

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                  Conservation DistList Instance 6:50
                 Distributed: Saturday, March 13, 1993
                        Message Id: cdl-6-50-007
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