Volunteer, and choose your own branch of the service - Uncle Sam (1917) poster by Arthur N. Edrop. Original public domain… https://www.rawpixel.com/image/8683957/image-art-watercolor-vintageFree Image from public domain licenseVolunteer, and choose your own branch of the service - Uncle Sam / Arthur N. Edrop. https://www.rawpixel.com/image/7722331/image-art-vintage-public-domainFree Image from public domain license