Printing on bottom states, "(1) Non-Classified (2) EST-629 (3) Charleston Naval Shipyard, Charleston, South Carolina (4) 25 May 1966 (5) Nuclear Service Building (6) Not Applicable (7) Exterior of Bldg & Compound (8) Looking East (9) NBy-608020 (10) NBy-EST."
Writing on bottom states, "(1) Non-Classified (2) EST-1672 (3) CNSYD, Charleston, SC (4) 10 October 1961 (5) Multi-Purpose Building (6) Not Applicable (7) South and West Walls (8) Looking Northeast (9) NBy-31328 (10) NST-EST