We were really excited when we heard that the archaeologists had found the Seal of John Campbell of Cawdor.  We decided to make our own seals.  Our initial designs were quite detailed:

We realised we would need to make them more simple for our seal models.  We used clay to make the seals.

Some of us wrote letters using a feather and rolled them up.

Then we sealed the letters with hot wax.

When we pressed our seals on we could see the pattern we had made.

We realised that this was a good way to make sure your letter was private, like an early way to avoid identity theft!