Mystery bricks which may be related – Midlothian

Found by Ian Suddaby.

Ian states –

There a number of mystery bricks in the North Esk Valley between Penicuik and Dalkeith, Midlothian and these are some of them. They’re mined clay-shale and are similar to Whitehill and some Arniston bricks.

There’s L/P K,

K with a big dot,

K big dot with a reversed 2.

So K is the common letter but is this the owner or what?

Below – 3 bricks found in the Lasswade/Penicuik area.

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Below – Found in the river at Dalkeith