Statements (18)
Predicate | Object |
---|---|
gptkbp:instanceOf |
gptkb:post_office
|
gptkbp:beganIn |
early 20th century
|
gptkbp:declined_due_to |
improved surface transport
integration with regular mail services |
gptkbp:deliveredBy |
mail by air
|
gptkbp:faster_than |
surface mail
|
gptkbp:first_official_service |
gptkb:United_Kingdom
|
gptkbp:first_regular_service |
1911
|
gptkbp:first_US_service |
1918
|
https://www.w3.org/2000/01/rdf-schema#label |
Air mail
|
gptkbp:marking |
special stamps
blue labels |
gptkbp:replacedBy |
regular airmail in most countries
|
gptkbp:usedFor |
international mail
domestic mail |
gptkbp:uses |
gptkb:aircraft
|
gptkbp:bfsParent |
gptkb:Railway_Post_Wagon
|
gptkbp:bfsLayer |
6
|