Lebanese Cuisine by Anissa Helou says that Seven Spices is a mixture of black and white pepper, allspice, cinnamon, cloves, nutmeg, and coriander; but cautions that there are regional and familial differences.
Note: Second House Spices uses the same blend as above.
Finally, ABIDO seven spices contains piment (allspice), black pepper, cinnamon, mahlab (sour cherry seeds), ginger, cloves, and nutmeg.