A mostrar agora: Letónia - Correio Aéreo (1921 - 1933) - 9 selos.
10. Janeiro WM: 2 Tamanho da Folha: 100 Perfuração: 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. Dezembro WM: 2 Tamanho da Folha: 100 Perfuração: 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. Dezembro WM: 2 Tamanho da Folha: 100 Perfuração: 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)
