Under tab, "Shop Extensions" Printing on bottom states, "(1) Non-Classified (2) EST-1502 (3) Charleston Naval Shipyard, Charleston, South Carolina (4) 10 September 1961 (5) Multi-Pupose Building and Extension to Machine Shop (6) Not Applicable (7) North Wall (8) Looking South(9) NBy-31328 (10) NBy-EST."
Under tab, "Shop Extensions" Printing on bottom states, "(1) Non-Classified (2) EST-1489 (3) Charleston Naval Shipyard, Charleston, South Carolina (4) 10 September 1961 (5) Extension to Machine Shop and Hydraulic Repair Facility (6) Not Applicable (7) South and WEst Walls (8) Looking Northwest (9) NBy-31328 (10) NBy-EST."
Writing on bottom states, "(1) Non-Classified (2) EST-1671 (3) CNSYD, Charleston, SC (4) 10 October 1961 (5) Construction of Fire Control and Navigation Building (6) Not Applicable (7) East Side (8) Looking Northwest (9) NBy-31327 (10) NST-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
