The chinstrap has two steel adjustment buckles and the helmet liner is stamped with a black “55”
fitting a 30" to 37" waist
measuring 45 mm (w) x 44
Underneath the guard is a maker’s mark of “OTTO HENNIG
surface wear evident on the beaver
Russia, Imperial. A Twenty-Fifth Anniversary Medal "In Memory Of Tsarskoye Selo, Berlin 1818-1843" certificate_of_authenticity The chinstrap has two steel( , 1818 1843 .). Instituted in 1843. In bronze gilt, measuring 33. 5 mm (w) x 38. 7 mm (h) inclusive of its integral ring, edge nicks, bruised, contact marks, without ribbon, fine. Footnote: In 1843, two infantry grenadier regiments celebrated the twenty fifth anniversary of the appointment of two princes of Prussia as chiefs: Friedrich Wilhelm, who later became the Prussian king Frederick William IV, and Prince Wilhelm, chief of the Kaluga infantry