The game of triangular dominos by Pressman.
The box is scuffed around the edges and has a little label residue/damage at the apex of the box.  The contents are complete and in very good condition.  Each piece has a small red mark on the back.  It seems that this has been applied by the previous owner - a mark of ownership?  It does not affact play in any way

The playing pieces are the high quality type with the metal stud in the centre of the face to prevent
wear when being moved across the table face down.

The game is for 2 to 4 players aged 8 to adult.
d00.