1944 SENTA, Burelage underprint

10 filler postage due (P1) exists with blue burelage underprint. Only 40 copies are known, probably from trial printing. Note that the same protection underprint can be found on the 1941 1st and 2nd provisional issue of Serbia.

1944 Senta local provisional issue, 10 filler postage due with blue burelage underprint,
only two are known in a block of four.

Stylized rosette pattern used for underprint.