Τώρα εμφανίζεται Μεξικό - ΑΣΦΑΛΙΣΜΕΝΑ ΓΡΑΜΜΑΤΟΣΗΜΑ (1940 - 1949) - 6 Γραμματόσημα.
1944 -1945
Inscription "SEGURO POSTAL" - New Watermark
WM: 2 Διάτρηση: 10 x 10½
![[Inscription "SEGURO POSTAL" - New Watermark, τύπος A1]](https://www.stampworld.com/media/catalogue/Mexico/Insured-letter-stamps/A1-s.jpg)
![[Inscription "SEGURO POSTAL" - New Watermark, τύπος B1]](https://www.stampworld.com/media/catalogue/Mexico/Insured-letter-stamps/B1-s.jpg)
![[Inscription "SEGURO POSTAL" - New Watermark, τύπος C1]](https://www.stampworld.com/media/catalogue/Mexico/Insured-letter-stamps/C1-s.jpg)
1947
Inscription "SEGURO POSTAL" - New Watermark
WM: 3 Διάτρηση: 10 x 10½
![[Inscription "SEGURO POSTAL" - New Watermark, τύπος A2]](https://www.stampworld.com/media/catalogue/Mexico/Insured-letter-stamps/A2-s.jpg)
![[Inscription "SEGURO POSTAL" - New Watermark, τύπος B2]](https://www.stampworld.com/media/catalogue/Mexico/Insured-letter-stamps/B2-s.jpg)
![[Inscription "SEGURO POSTAL" - New Watermark, τύπος C2]](https://www.stampworld.com/media/catalogue/Mexico/Insured-letter-stamps/C2-s.jpg)
