Estás viendo: Letonia - Correo Aéreo (1921 - 1933) - 9 sellos.
10. Enero Marca de agua: 2 Tamaño de la hoja: 100 Perforación: 11½
![[Airmail - Different Watermark, tipo B3]](https://www.stampworld.com/media/catalogue/Latvia/Airmail/B3-s.jpg)
![[Airmail - Different Watermark, tipo B4]](https://www.stampworld.com/media/catalogue/Latvia/Airmail/B4-s.jpg)
![[Airmail - Different Watermark, tipo B5]](https://www.stampworld.com/media/catalogue/Latvia/Airmail/B5-s.jpg)
5. Diciembre Marca de agua: 2 Tamaño de la hoja: 100 Perforación: 10¾
![[Airmail - Not Issued Stamps Overprinted "LATVIJAS AIZSARGI" & Surcharged, tipo C]](https://www.stampworld.com/media/catalogue/Latvia/Airmail/C-s.jpg)
![[Airmail - Not Issued Stamps Overprinted "LATVIJAS AIZSARGI" & Surcharged, tipo C1]](https://www.stampworld.com/media/catalogue/Latvia/Airmail/C1-s.jpg)
![[Airmail - Not Issued Stamps Overprinted "LATVIJAS AIZSARGI" & Surcharged, tipo C2]](https://www.stampworld.com/media/catalogue/Latvia/Airmail/C2-s.jpg)
9. Diciembre Marca de agua: 2 Tamaño de la hoja: 100 Perforación: 10¾
![[Airmail - Imperforated, tipo C3]](https://www.stampworld.com/media/catalogue/Latvia/Airmail/C3-s.jpg)
![[Airmail - Imperforated, tipo C4]](https://www.stampworld.com/media/catalogue/Latvia/Airmail/C4-s.jpg)
![[Airmail - Imperforated, tipo C5]](https://www.stampworld.com/media/catalogue/Latvia/Airmail/C5-s.jpg)
