From the Sister Klaryta Antoszewska Photograph Collection (PH-00352). Signs read: "NOTICE VEHICLES TRANSPORTING EXPLOSIVES STOP 1000 FT. AHEAD TELEPHONE FOR INSTRUCTIONS" and "UNAUTHORIZED EXPLOSIVES PROHIBITED ON THE NEVADA TEST SITE"

From the Syphus-Bunker Papers (MS-00169). The folder contains an original handwritten letter, a typed transcription of the same letter, the original envelope split in half and the stamp removed, and a copy of the original letter.

From the Syphus-Bunker Papers (MS-00169). The folder contains an original handwritten letter and a typed transcription of the same letter, and a copy of original letter attached.

From the Syphus-Bunker Papers (MS-00169). The folder contains an original handwritten letter and a typed transcription of the same letter, and a copy of the original letter.