From 1867 to 1871 the watermark was inverted. As such the following have watermarks inverted
- A few from plate 8
- Half of plates 9 and 12
- All of plates10 and 11
Plate 6
Destroyed, not used
Plate 7
8,280,000 stamps
Plate 8
10,800,000 stamps
Plate 9
10,080,000 stamps
Plate 10
2,760,000 stamps
Plate 11
13,760,000 stamps
Plate 12
15,842,880 stamps
Plate 13
12,000,000 stamps
(mainly SG93)
Plate 14
8,400,000 stamps
(mainly SG93)
Buenos Ayres 1870
Plate 7
8th June, 1865 to 1st December 1866
Plate 8
23rd January 1866 to 15th July 1867
Plate 9
16th May 1867 to 8th August 1868
Plate 10
17th March 1868 to 21st November 1868
Plate 11
Late 1868 to 21st March 1870
Plate 12
21st March 1870 to 11th October 1872
Plate 13
11th October 1872 to 11th June 1874
Plate 14
8th May 1873 to 16th November 1875
Plate 7
3rd June 1865
Plate 8
15th August 1865
Plate 9
2nd November 1866
Plate 10
22nd December 1866
Plate 11
10th October 1868
Plate 12
28th November 1868
Plate 13
1st January 1869
Plate 14
1st April 1869