My new addition need to be addes to this thread to keep it going My officers M43 in other ranks quality wool. Collar patches have been machine sewn, with no other evidence of other collar pathes being worn. Arm eagle has been hand applied, there is also no other evidence that another eagle had been previously applied. There is a little tracking which can only be seen in the correct lighting, so I believe that the collar patches and arm eagle are original to the tunic.
