Bull's eye bubble used to keep rod level during leveling operations. During
tide gauge removal operations at Quicks Hole.
Image ID: cgs00987, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Photo Date: 2004 September 30
Credit: Personnel of NOAA Ship THOMAS JEFFERSON; Collection of Gretchen Imahori, NOAA/NOS/OCS
• High Resolution Photo Available