Help with a .303 headstamp

I am sure I have seen this headstamp on here but I can find any posts it is

37* at 12 o’clock and H at 6 o’clock it has a very magnetic bullet and a black annulus, it is a small primer.

Sorry I cant seam to upload a photo onto my computer at the moment

Rich.

Netherlands? viewtopic.php?f=8&t=15419

Many thanks I knew I had seen it on here

thanks again

Richard.