Visor hat for the lower ranks of the infantry in the Wehrmacht

Visor hat for the lower ranks of the infantry in the Wehrmacht. Private purchased. Combat wool made. Size approx. 57. Slight damage to the sweatband, as well as to the celluloid diamond (Stirndruckfrei Deutsches Reichspatent) due to wear and ages. Cap signed by owner: Unteroffizier Lenker.  Good condition with traces of use. There is a tiny moth hole on the band, in the area of the upper piping, no larger than a match head.