{gbW: "1400", gbH: "1476", mW: "355.0", mH: "375", kb: "359 KB", notes: "For model Delta, Isophon, E. Fritz & Co. GmbH.; Berlin", title: "Isophon, E. Fritz & Delta dal socio RM (sID 652) (1)", ite: "1"}
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{gbW: "537", gbH: "700", mW: "287.0", mH: "375", kb: "24 KB", notes: "For model Delta, Isophon, E. Fritz & Co. GmbH.; Berlin", title: "Isophon, E. Fritz & Delta da Hinrich Grensemann † 15.5.16 (1)", ite: "1"}
{gbW: "702", gbH: "700", mW: "376.0", mH: "375", kb: "86 KB", notes: "For model Delta, Isophon, E. Fritz & Co. GmbH.; Berlin", title: "Isophon, E. Fritz & Delta da Hinrich Grensemann † 15.5.16 (1)", ite: "1"}
{gbW: "400", gbH: "363", mW: "400", mH: "363", kb: "113 KB", notes: "For model Delta, Isophon, E. Fritz & Co. GmbH.; Berlin", title: "Isophon, E. Fritz & Delta da Robert Weiner (1)", ite: "1"}
{gbW: "400", gbH: "382", mW: "392.0", mH: "375", kb: "121 KB", notes: "For model Delta, Isophon, E. Fritz & Co. GmbH.; Berlin", title: "Isophon, E. Fritz & Delta da Robert Weiner (1)", ite: "1"}
{gbW: "600", gbH: "231", mW: "500", mH: "192.0", kb: "95 KB", notes: "For model Delta, Isophon, E. Fritz & Co. GmbH.; Berlin:[br]Original prospekt in 1931, Germany.", title: "Isophon, E. Fritz & Delta inviato da Sandor Selyem-Tóth (2)", ite: "2"}
{gbW: "722", gbH: "700", mW: "386.0", mH: "375", kb: "44 KB", notes: "For model Delta, Isophon, E. Fritz & Co. GmbH.; Berlin", title: "Isophon, E. Fritz & Delta da Hinrich Grensemann † 15.5.16 (1)", ite: "1"}
{gbW: "674", gbH: "700", mW: "361.0", mH: "375", kb: "41 KB", notes: "For model Delta, Isophon, E. Fritz & Co. GmbH.; Berlin", title: "Isophon, E. Fritz & Delta da Hinrich Grensemann † 15.5.16 (1)", ite: "1"}