Pictorial Envelope: 1 envelope; 3 x 5 1/2 in. African American men with mining tools in-hand, volunteering to join the Union Army. White envelope with colored ink. Image on left. Printed above image: 'Contraband of war; / OR, / VOLUNTEER SAPPERS AND / MINERS / FROM THE 'F.F.V.' Printed below image: 'Massa Butler, we's jest seceed from de / 'Meen-asses Junction,' and wants to 'list in the counter- / band rigiment. We's no great hands at fightin', but we kin / run 'most as fast as our old massas did toder night, Now, / ef you wants any trenches or forti'cations made, WE'S de / niggers to call upon in dat ar line.' / We borro'd des yer tools at de Junction, and / gwine to carry em back at de close ob horsetilities.'