'B / 9 ft / 12 / 76' register mark on a timber pile of the Curdies River trestle bridge

Indicating pile 9 feet below ground, installed in December 1976
'B / 9 ft / 12 / 76' register mark on a timber pile of the Curdies River trestle bridge
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Taken with a Canon EOS 7D
Date: April 21, 2022 13:00 PM
Exposure Time: 1/400 sec
Aperture Value: f/7.1
Focal Length: 85 mm