Traveller's cheques
A traveller's cheque was signed once when bought and once again, in front of whoever cashed it: the two signatures had to agree. The companies that sold them from the 1890s had them cashed at a fixed rate at home and at the current rate for bankers' cheques abroad.
No cheque of 1920 to 1939 has been found, so the cheques Bearer prints are a reconstruction, in the name of the issuer you give, and the office says so above them.
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 21 October 1920 |
| Printed in | English |
| Sheets | 1 |
| How it is known | a reconstruction: no document of the period has been found |
A reconstruction
This paper is a reconstruction. No traveller's cheque of 1920 to 1939 has been found: the cheque is set on the principle of the two signatures, one when bought and one in front of whoever cashes it, and on the words of a recent cheque of a company that issued them from 1891; the issuer is the one you name, and the layout is ours.
Still to be confirmed
- the whole cheque. What would settle it: a traveller's cheque of the period.
Sources
- American Express; photograph on Wikimedia Commons, American Express Travelers Cheque, twenty dollars (a cheque of recent years), WHEN COUNTERSIGNED BELOW WITH THIS SIGNATURE, DATE, Pay this Cheque to the Order of, the amount IN UNITED STATES and IN ALL OTHER COUNTRIES NEGOTIABLE AT CURRENT BUYING RATE FOR BANKERS' CHEQUES ON NEW YORK, COUNTERSIGN HERE IN PRESENCE OF PERSON CASHING, the serial number (read directly)
Open the passport office ยท MGS Toolbox