Civil War Drummer Boys Original Caption:
Anthony’s Stereoscopic views. No. 1471, Three Drummer Boys (Now at Ft. Hamilton) Who Have Been in 9 Battles of the Rebellion

Digital ID:  (digital file from original item) stereo 1s02988 http://hdl.loc.gov/loc.pnp/stereo.1s02988  
Reproduction Number: LC-DIG-stereo-1s02988 (digital file from original item) 
Repository: Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.print 
Posted by Andy Hall Civil War Talk
http://www.loc.gov/pictures/item/2012649697/resource/

Civil War Drummer Boys Original Caption:

Anthony’s Stereoscopic views. No. 1471, Three Drummer Boys (Now at Ft. Hamilton) Who Have Been in 9 Battles of the Rebellion