Help sought on this buckle

[B. N. Singer]

Gentlemen,

I have been asked about the originality of this Luft buckle and I am out of my depth here.

Any and all comments would be much appreciated.

Thanking all in advance,
B. N. Singer

[B. N. Singer]

more pictures

More pictures.

[B. N. Singer]

last

last

[planet]

In my opinion a fake disk on an original box which was neutralized post war by stamping out the center and affixing a neutral disk. I am sure someone here has a picture of the neutralized buckle. You can often find them on ebay.
Best, Thomas