EK1 Iron Cross / Eisernes Kreuz LDO Box with L/21 by Förster & Barth,Pforzheim “Late type” by Original War Time Period Case, Box / Etui with white interior

This is a ultra rare LDO box by  Förster & Barth , Pforzheim  with LDO L/21 stamp inside the box.

According to a decree
..from 1st March 1941 restrikes of orders
and medals instituted after 30 January 1933 May ,only be delivered for commercial sale in wrappings and Packagings approved by the LDO…the symbol of the LDO is to be used on all…:

These types boxes during the war, for some reason, not many people used this solution outside of the boxes (most likely because the manufacturer would have had to make new tools), so they only displayed the LDO logo on the inside of the box and/or on labels.
Probably for cost-effectiveness, which is why there are not many of these types.
The condition can be said to be very good, all the latches and hinges work perfectly.

Another interesting thing is that the label “remained” on the back of the box, which probably reflected the price at the time, of course in German Imperial Marks
5.60 DEM