Luftwaffe Tropical Tunic "Translation Needed"

[J. M. C.]

I picked up this tattered Luftwaffe tropical tunic and it has these interesting stitched letters and numbers in the collar. Any idea what they are for?

Thanks in advance for any help.

[NickG]

Laundry identifier...

[J. M. C.]

Thanks Nick!

Now I just need to find the master laundry list and I'll have the owner's name...
Just kidding.