One exceptional U-boat box amunition

[LU1900]

Some of those box where find in the past , but first time with the carring strap about 700 round can be safe inside , out of water
Alls we know , the strap is cut near the "hooks"/"rings"
The strap is 1,65 meter long at the max and 1,13 meter at the mini !
The box is like the other seen , brass or bronze and box in zinc
The original label present here has been scratched in ancient times but seems to be for the 700 rounds .
I do also a post on Still forum now and in the past , here the link , if the moderator agree, if not delete
http://luger.gunboards.com/showthrea...two-exeptional
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Well , now, enjoy pics and add question if need more info