$5 sábanas

The sequence appears to have been:

The first notes had two handwritten signatures.

Notes are also known with Vargas' signature printed and Chao's signature hand written. More research is required to determine when and why it was decided to make this 'halfway' change.

Finally, both signatures were printed on the note.

The abbreviation then changed to 'No. Núm.'.

So far the No. Num. large, large notes known have been counterfeits (Type 2).

and, finally, to 'No. No.'.

Some Series C and Series D notes (such as the one with purple seal illustrated above) have the printer's imprint slightly higher and might be counterfeit.