Muri Bhalissa: USSR - Bolol tal-posta (1923 - 1929) - 5 bolol.
24. March WM: 1 Qies ta'karta: 80 Disinn: D. Golyadkin Inċiżjoni: recess Perforazzjoni: 10½
![[Definitive Issue - Lenin, Tip L2]](https://www.stampworld.com/media/catalogue/USSR/Postage-stamps/L2-s.jpg)
![[Definitive Issue - Lenin, Tip L3]](https://www.stampworld.com/media/catalogue/USSR/Postage-stamps/L3-s.jpg)
![[Definitive Issue - Lenin, Tip L4]](https://www.stampworld.com/media/catalogue/USSR/Postage-stamps/L4-s.jpg)
5. August WM: 1 Qies ta'karta: 80 Disinn: V. Kupriyanov Inċiżjoni: litho Perforazzjoni: 12½
![[The 6th International Proletarian Esperanto Congress, Tip U]](https://www.stampworld.com/media/catalogue/USSR/Postage-stamps/U-s.jpg)
![[The 6th International Proletarian Esperanto Congress, Tip U1]](https://www.stampworld.com/media/catalogue/USSR/Postage-stamps/U1-s.jpg)
