Original German WWII Cased Iron Cross First Class 1939 by C.F. Zimmermann of Pforzheim - EKI Military Awards Medals Badges Insignia with 1873 being the "Final"

with 1873 being the "Final" product produced by Erskine S

so it is possible that they are just the retailer

The jacket bears Sergeant chevrons on the sleeves

but due to wear and cleaning their German Waffenamt and maker markings have been worn away

Original German WWII Cased Iron Cross First Class 1939 by C.F. Zimmermann of Pforzheim - EKI Military Awards Medals Badges Insignia with 1873 being the "Final"Original Items: Only One Available. This is a lovely cased example of a WWII Iron Cross First Class 1939, with a Magnetic core, flat design, and later straight pin attachment. It is maker marked on the underside of the pin by the hinge with Prsidialkanzlei des Fhrers Lieferant (Presidential Chancellery Supplier) number 20, which represents C. F. Zimmermann of Pforzheim. There also looks like there may be an "L 52" marking closer to the hinge, the LDO