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Blue piano insulator172 viewsJelly mould form A. French? Similar seen marked Reims, France
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Davidson yellow uranium piano insulator177 views1928 catalogue. Castellated form D
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Davidson yellow uranium piano insulator80 views1928 catalogue. Castellated form D
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Green piano insulator32 viewsJelly mould form A. French? Similar seen marked Reims, France
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Light blue piano insulator29 viewsCastellated form B
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Bagley blue piano insulator112 viewsCastellated form A
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Bagley green piano insulator35 viewsCastellated form A
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Percival Vickers? yellow uranium piano insulator56 viewsProbably Percival Vickers. Jelly mould form B
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Percival Vickers? yellow uranium piano insulator61 viewsProbably Percival Vickers. Jelly mould form B
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Pale aqua piano insulator27 viewsCastellated form C
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Pale aqua piano insulator26 viewsRaised well rim and a deeper well than usual
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Pyrex telephony insulator39 views7 in
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