Sýni: Lettland - Flugpóstur (1921 - 1933) - 9 frímerki.
10. janúar WM: 2 Síðu stærð: 100 Götun: 11½
![[Airmail - Different Watermark, tegund B3]](https://www.stampworld.com/media/catalogue/Latvia/Airmail/B3-s.jpg)
![[Airmail - Different Watermark, tegund B4]](https://www.stampworld.com/media/catalogue/Latvia/Airmail/B4-s.jpg)
![[Airmail - Different Watermark, tegund B5]](https://www.stampworld.com/media/catalogue/Latvia/Airmail/B5-s.jpg)
5. desember WM: 2 Síðu stærð: 100 Götun: 10¾
![[Airmail - Not Issued Stamps Overprinted "LATVIJAS AIZSARGI" & Surcharged, tegund C]](https://www.stampworld.com/media/catalogue/Latvia/Airmail/C-s.jpg)
![[Airmail - Not Issued Stamps Overprinted "LATVIJAS AIZSARGI" & Surcharged, tegund C1]](https://www.stampworld.com/media/catalogue/Latvia/Airmail/C1-s.jpg)
![[Airmail - Not Issued Stamps Overprinted "LATVIJAS AIZSARGI" & Surcharged, tegund C2]](https://www.stampworld.com/media/catalogue/Latvia/Airmail/C2-s.jpg)
9. desember WM: 2 Síðu stærð: 100 Götun: 10¾
![[Airmail - Imperforated, tegund C3]](https://www.stampworld.com/media/catalogue/Latvia/Airmail/C3-s.jpg)
![[Airmail - Imperforated, tegund C4]](https://www.stampworld.com/media/catalogue/Latvia/Airmail/C4-s.jpg)
![[Airmail - Imperforated, tegund C5]](https://www.stampworld.com/media/catalogue/Latvia/Airmail/C5-s.jpg)
