Murthly Castle (5)
On the east face of the old keep, just to the left of the angle-turret, there is a heraldic panel, very worn, bearing the arms of Stewart and a 17th century date, probably 1617.  The turnpike stair is in the south-east corner of this tower, and is marked by a very slight projection in the east wall.  The projection is not visible, but an extra half row of slates on the left at roof level indicates where it is.

There are at least 5 re-purposed dormer pediments built into the walls, visible in this photo.
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