EK1 Iron Cross / Eisernes Kreuz C.E Juncker own frame, with LDO number L/12 with W&L magnetic core

Iron Cross / Eisernes Kreuz C.E Juncker own frame, with LDO number L/12 with W&L magnetic core

The interesting thing about this piece is that since the inner core is not Juncker’s own core, but Rudolf Wächtler & Lange, these pieces are usually unmarked.
This example, however, contains an LDO marking

These the pieces a very nice collection part, not easy to find