This is a replica of a "petit bleu" ("little blue"), which were small letters sent via the pneumatic tubes system in Paris, in the 19th and early 20th centuries.

Telegrams are common paper props for my 1920s Call of Cthukhu campaign. Here I show a prop telegram from Peru in the 1920s.

I created this Letter of Marque for my 'Skull and Shackles" campaign.