COLLECTIBLE: Used in Nepal, 1854, 1a Dull Red, Die II (4B; SG 14). Close but mostly clear margins, just barely touching at left, tied by well-struck "B/137" cancel on 1856 cover to Monghyr (Munger), India, indistinct (watery) magenta Nepal despatch datestamp on back, Monghyr Mar. 12 arrival backstamp, cover with small spindle hole at far left VERY FINE. THIS IS THE EARLIEST RECORDED USE OF THE "B/137" CANCEL USED IN NEPAL AND THE ONLY KNOWN ONE-ANNA RATE COVER FROM NEPAL. Ex Dr. Hellrigl. With 2016 B.P.A. Certificate.