Ditunjukkan sekarang: Ecuador - Setem-setem cukai pos (1930 - 1939) - 8 Setem-setem.
WM: Tiada Perforasi: 12 & 12½
![[Revenue and Postage Stamp Overprinted "CASA de Correos y Telegrafos de Guayaquil" in Red Colour, jenis K]](https://www.stampworld.com/media/catalogue/Ecuador/Postal-tax-stamps/K-s.jpg)
![[Revenue and Postage Stamp Overprinted "CASA de Correos y Telegrafos de Guayaquil" in Red Colour, jenis K1]](https://www.stampworld.com/media/catalogue/Ecuador/Postal-tax-stamps/K1-s.jpg)
WM: Tiada Perforasi: 12
![[Revenue Stamp Overprinted "CASA de Correos y Telegrafos de Guayaquil", jenis L]](https://www.stampworld.com/media/catalogue/Ecuador/Postal-tax-stamps/L-s.jpg)
![[Revenue Stamp Overprinted "CASA de Correos y Telegrafos de Guayaquil", jenis L1]](https://www.stampworld.com/media/catalogue/Ecuador/Postal-tax-stamps/L1-s.jpg)
WM: Tiada Perforasi: 12
![[Postage Stamp of 1929 Overprinted "CASA de Correos y Teleg. de Guayaquil", jenis M]](https://www.stampworld.com/media/catalogue/Ecuador/Postal-tax-stamps/M-s.jpg)
![[Postage Stamp of 1929 Overprinted "CASA de Correos y Teleg. de Guayaquil", jenis M1]](https://www.stampworld.com/media/catalogue/Ecuador/Postal-tax-stamps/M1-s.jpg)
WM: 1 Perforasi: 15 x 14
![[Building of New Post and Telegraph Office - Watermarked, jenis N]](https://www.stampworld.com/media/catalogue/Ecuador/Postal-tax-stamps/N-s.jpg)
![[Building of New Post and Telegraph Office - Watermarked, jenis XN]](https://www.stampworld.com/media/catalogue/Ecuador/Postal-tax-stamps/XN-s.jpg)
Ditunjukkan sekarang: Ecuador - Setem-setem cukai pos (1930 - 1939) - 8 Setem-setem.
WM: Tiada Perforasi: 12 & 12½
WM: Tiada Perforasi: 12
WM: Tiada Perforasi: 12
WM: 1 Perforasi: 15 x 14