$10 sábanas

The sequence appears to have been:

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

These Series A NUM. have 'General' printed in full rather than the abbreviation 'Gral'.

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

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