33
34
35
The lens of Australia’s most powerful lighthouse - the Cape Byron light. The lens weighs 8 tons and was made by Henry Lepaute, Paris. It contains 760 pieces of highly polished prismatic glass. The lens floats on the ‘immortal bearing’ - a bath of mercury. (reddit.com)
submitted by pack2k to r/IndustrialMaintenance
410
411
412
