Late-war ersatz binocular case 'Carl Zeiss Jena'

A late-war period brown ersatz material binocular case which is clearly marked for manufacture by Carl Zeiss Jena. 
 
An example that is of near identical style to the earlier Kriegsmarine issue storage cases, and one which would now really only be suitable for display only or for use for key spare parts / hardware due to a detached base.