From J-L Larcade's Volume II:
-A very sinister emblem is decorating the front of the Flügelmützen of 1. and 2. Regtr LeibHusaren: a Totenkopf/skull with two crossed bones ! Nickel silver. The eye sockets and the nasal cavity stand out clearly from the black background of the mitre. Both Regts inherit this emblem from the old HusarenRegt Nr5 "von Ruesch”; called "von Prittwitz"in 1806.
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The significance of this logo is clear; its origin by no means: two hypothesis are formulated:
1. At the time of the creation of the Regt in 1741 the uniforms were made from materials decorated with the white outlines of skulls ... This cloth either came from the death room of the funeral ceremonies of Friedrich-Wilhelm I or from a monastery where the main income of the monks came from the manufacturing of shrouds .
2. At the time of the units creation: an Austrian Pandur hat served as a model for the head-dress of this newly created Regiment. The artist, in charge of the design-after thorough examination of all joints and stiches-discovered that the inside of this headdress showed a painted skull. Friedrich der Grosse, informed of this remarkable detail, decided that from then on, the Totenkopf was to be worn on the front of the Flügelmütze.
Rgds,
Francis