The pilot's licence of the convention of 1919
The Paris convention of 13 October 1919 on aerial navigation, in force from 11 July 1922, required the commanding officer, pilots and engineers of every aircraft to carry certificates of competency and licences issued by the State whose nationality the aircraft had (art. 12). Annex E set the classes: private pilot's flying certificate, not valid for public transport; pilot's certificate for public transport; balloon pilots; airship officer pilots of three classes; navigators. A pilot was examined by flight surgeons and re-examined at least every six months, the date and result recorded on his certificate.
The convention annexes no model of the paper and no licence of the period has been found, so the paper Bearer prints is a reconstruction on Annex E, and the office says so above it. The Royal Aero Club's aviator's certificate, read, is on its own page.
Bearer makes an investigator's papers for Call of Cthulhu and any 1920s or 1930s tabletop campaign: the passport a consul would have filled in, with the visas and frontier stamps a campaign leaves in it, and the permits, certificates and tickets of the period, to print or to share.
An example

Open this example in the office
The paper
| Offered | from 11 July 1922 |
| Printed in | English |
| Sheets | 2 |
| How it is known | a reconstruction: no document of the period has been found |
A reconstruction
This paper is a reconstruction. The Paris convention of 13 October 1919 required the crew of an aircraft to carry certificates of competency and licences (art. 12), set the classes of certificate and the medical examination, renewed every six months and recorded on the certificate (Annex E), but annexed no model of the paper, and no licence of the period has been found. The classes and the medical record are the convention's; the words and layout are ours.
The same paper elsewhere
Still to be confirmed
- the whole paper. What would settle it: a pilot's licence issued under the convention of 1919.
- validity of one year. What would settle it: the licensing rules of a party to the convention.
- the convention bound its first parties on 11 July 1922; which states were parties year by year is not listed. What would settle it: the ratifications of the convention of 1919.
Sources
- League of Nations, Treaty Series, vol. XI, No. 297, Convention relating to the Regulation of Aerial Navigation, signed at Paris, October 13th, 1919, Annex E, art. 12 (the crew carry certificates of competency and licences issued or rendered valid by the State whose nationality the aircraft possesses); Annex E: private pilot's flying certificate (not valid for public transport), pilot's flying certificate for public transport, balloon pilots, airship officer pilots of three classes, navigators; section V: medical examination, re-examination at least every six months, the date and result recorded on the aeronaut's flying certificate (read directly)
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