WH (Heer) Slip-ons for the 'Infanterie-Regiment 313'

This is a nice matching pair of WH (Heer) Shoulder Strap 'slip-ons' ('Überschube') as intended for a 'Soldat des Infanterie-Regiment 313'. The pair is showing the nicely 'chain-stitched' embroidered regimental numbers '313' in white on a fieldgrey woolen background. The white  branch-colour is indicating a soldier within an Infantery unit. The pair shows some minor traces of years of storage. Nice pair in good unissued condition.