Under tab "New Construction". Printing on the bottom states, "276-40 US Navy Yard, Charleston, SC. 1 April 1940. Labor Board and Post Office Building. Allotment 7x222-22-1. Yard Labor. View looking Northwest. File #8910."
Under tab, "Shipfitter Shop" Printing on bottom states, "17-42 US Navy Yard, SC March 9, 1943. Boring Mill, vertical, capacity 72" x 48", make Cincinnati, yard index No. 3-6113. (Front View) FIle 15132."
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."
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