Guatemala - Selos Fiscais Aéreos (1919

[The 65th Anniversary of Liberal Revolution - Central Post Office Stamp of 1927 Overprinted &#34;1871 - 30 DE JUNIO - 1936&#34;, Tipo B1]

[The 115th Anniversary of Independence - Central Post Office Stamp of 1927 Overprinted &#34;1821 - 15 de SEPTIEMBRE - 1936&#34;, Tipo B2]

[National Fair - Central Post Office Stamp of 1927 Overprinted &#34;FERIA NACIONAL - 1936&#34;, Tipo B3]

[Stamp Exhibition, Guatemala City - Central Post Office Stamp of 1927 Overprinted &#34;EXPOSICION - FILATELICA - 1937&#34;, Tipo B4]

[The 150th Anniversary of the US Constitution - Central Post Office Stamp of 1927 Overprinted, Tipo B5]

[Central Post Office Stamp of 1927 Overprinted &#34;1938&#34; in Red or Blue, Tipo B6]

[Stamp Exhibition, Guatemala City - Central Post Office Stamp of 1927 Overprinted, Tipo B7]

[Central Post Office Stamp of 1927 Overprinted &#34;1939&#34; in Black or Green, Tipo B8]

[Central Post Office Stamp of 1927 Overprinted &#34;1940&#34; in Dark Purple or Dark Brown, Tipo B9]

[The 50th Anniversary of Pan American Union - Central Post Office Stamp of 1927 Overprinted, Tipo B10]

[Central Post Office Stamp of 1927 Overprinted &#34;1941&#34;, Tipo B11]