Oldenburg, Grand Duchy. A House & Merit Order Of Peter Frederick Louis, Grand Cross Chapter Badge, Museum Example Hold both tabs edged by a

both tabs edged by a silver twisted string on all four sides

and is depicted on page 138 in his book

an Instruction Booklet entitled "FIGHTING IN THE AIR" (issued by the General Staff

eagle insignia on the obverse

Oldenburg, Grand Duchy. A House & Merit Order Of Peter Frederick Louis, Grand Cross Chapter Badge, Museum Example Hold both tabs edged by a(Haus und Verdienstorden von Herzog Peter Friedrich Ludwig, Kapitularzeichen zum Grokreuze Museumsstck). Instituted 27 November 1838 by Paul Friedrich August. Constructed of gilded bronze with multi coloured enamels, consisting of a round green enameled oak leaf wreath, the obverse with a central gilt monogram of Peter Frederick Louis on a blue enameled centerpiece, within a ring of ribbed gilt surrounded by a red enameled ring bearing a gilt