Watch List notes:

BULGARIA: Specimen of 10 Leva Srebro (ND 1899) in black on blue and ochre unpt. Farm girl carrying roses at left and arms at right on face. Range S/N: "1500001 / 2500000". Perforated "SPECIMEN" at lower center. Printed by BWC. Inside holder by PMG "Choice About Unc 58 / A. Kraptchev Collection". (Pick A7s3) & (Kraptchev 7s3). Extremely rare banknote, missing even from the Bulgarian National Bank collection. Only two known, both in Kraptchev coll.