5-1/4" Abney Level5-1/4" long with radius arc graduated 0 to 90 degrees in both directions, with vernier reading to 10 minutes and percent of grade scale from 0% to 100%
5-1/4" Abney Level 5-1/4" long with radius arc graduated 0 to 90 degrees in both directions, with vernier reading to 10 minutes and percent of grade scale from 0% to 100%. Complete with Cordura⢠belt loop case.
