And here we have one of Fremantle's formal early pieces with its non-hydaulic pieces uncovered to show what I discussed earlier where darker stone is revealed and possibly the evidence for darker lime washes we saw in the vernacular of Fremantle.
Here we see two colours. Both construction mortar and a lighter facing mortar. First stone buildings may also have had conch lime in the facing mix to increase strength.
While we now have penetrating sealers which harden stone exterior and prevent stone losing its colour to mold, evidence is present of a hydraulic Portland bag over the top.
This stone would have been chosen darker, slightly softer for facing.
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