9x19 headstamp ID

Was going thru some 9x19mm cases I was given recently. One had headstamp SB-R . 9x19 (SB-R at 12, “.” at 9 and 9x19 at 6 o’clock). Im assuming this wa mad/loaded by Sellier and Bellot but have never seen this particular headstamp. The “R” and “.” are mainly wahts new. Anyone have any info on this one? Brass case and Brass Boxer primer.

Thx Brian