$20 sábanas

The sequence appears to have been:

sabanas 20 A 12461

sabanas 20 A 12461 reverse

Colour
of series
Series
letter
ImprintAbbreviationSize of numbers
(left, right)
Type of seal
on reverse
red A B NUM. large, large black

 

The A 'NUM.' with a printed (rather than stamped) seal on the back is a counterfeit (see Counterfeit $20 sábanas Type 1), even though they are known with resellos.

sabanas 20 A 61009

Colour
of series
Series
letter
ImprintAbbreviationSize of numbers
(left, right)
Type of seal
on reverse
  A B No. NUM.   black
red large, large purple

 

sabanas 20 A 25912

Colour
of series
Series
letter
ImprintAbbreviationSize of numbers
(left, right)
Type of seal
on reverse
red A B No. No. large, large black
No. No. black
No. No. purple

 

These are known both with and without a dot after 'GOBIERNO' in the printer's imprint, presumably from different positions on the page.

Some notes have the left flourish of the letter 'S' filled in, but as these notes are known with a variety of resellos and with the 'REVALIDADO' revalidation, they are as likely to be a genuine variation rather than counterfeits. However, such notes are known with the misprint 'VIENTE' for 'VEINTE'.

sabanas 20 A 71079