This is what I beleive the marks to be:
Initials:TE
The three stamps: Thistle, Castle, Cursive F.
My question is, who's makers mark is TE?
How old is it?
The black material appears to be and feels like a very hard wood. There is a grain to upper and lower pieces.
Here is an image of the piece and the marks:
(click on the image for a bigger view)

Thank you!
Russell
.