Watch List notes:

M4642Bs2 – 500 Pesos Banco de México, 1978 Espécimen. UNC. 158 x 67 mm. Serie CCV. Impreso por American Bank Note Company, el 18 de enero de 1978, folios en ceros, firmas impresas

ENGLISH:
158 x 67 mm. BLJ series. Printed by American Bank Note Company, June 27, 1972, zeros as serial number, printed signatures.