Carte de visite van Florus Henri Prager - Cadetten-School Alkmaar. 1894 Alkmaar Cadettenschool uniform 1893-1895 grote tenue; uniform 1897-1913 grote tenue; uniform 1913-1916 grote tenue; uniform 1923-1924 gekleede tenue Groepsfoto van zeven kadetten van de cadetten-school Alkmaar, 1901
