Watch List notes:

Alle Welt: Singapore: rare set of 4 CONSECUTIVE ERROR notes of the type 20 Dollars ND(1979) P. 12. Please inspect the 2 serial numbers on each note which do not fit together. The right and left numbers of the two notes are seperatly consecutive (at left: 367441, 442, 443, 444, at right: 367451, 452, 453, 454) but the 2 serial numbers on one note do not match. Never seen before on the market, so we called it CONSECUTIVE ERROR. Nice and special addition to any collection. Condition: UNC. (4 pcs)