Vtg Stencil US No 4 Paint Low  Suggérée par donshottype 
Top Secret  Suggérée par dlovesyou 

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The closest substitute is perhaps Vtg Stencil US No 4 Paint Low. Note that this is NOT THE FONT
Vtg Stencil US No 4 is also available in a smooth version.
Also similar is Vtg Stencil US No 2, which is available only in a smooth version.
http://myfonts.us/td-N5qZDj