Wehrmacht admin Overcoat in the rank of Oberwaffenmeister, privately purchased

Wehrmacht Overcoat in the rank of Oberwaffenmeister in technical and administrative service of the Wehrmacht. Privately purchased.  Shoulder straps with black lining for the administrative, technical, and saddlery services of the Wehrmacht. Shoulder straps have been reapplied, but it is hard to say when it was done:  our days or during the war period due to the cleaning of the overcoat without insignia. Good condition, small size, approximately 48. Chest: 104 cm, over shoulders: 120 cm, sleeve: 64 cm, waist: 92 cm.