Under tab, "Shop 980" Note states, "SAND SLINGER - Arthur Martin, molder, operates machine capable of providing and ramming sand at speeds to 1,000 pounds per minute. With a 19 foot operating radius fully extended, it can be raised to 5 feet 6 inches or lowered to about 2 feet 6 inches. 12 May 1961."
Under tab, "Shipfitter Shop" Printing on bottom states, "Shop XII Extension" Printing on back states, "Construction of Extension to Machine Shop, Building 3"
Printing on side states, "MAY61". Included note states, "Two Experiments ---The installation of a ventilation system, indicated by the "chimneys", permitted 500 man shafts of work to be accomplished on the submarine Picuda (SS382) during the sandblasting and painting period. Previously no other work was performed during this period. Incident to the ventilation system is the enclosed air-lock accessed (right). The complete canvas all-weather cover permitted sandblasting and painting to continue without interference from rain, dew, and fog. Work that normally requires ten to twelve days was completed in seven."
