HP-15C what books were in the original box?

[Craig Bladow]

Were both the HP-15C Owner's Handbook and the HP-15C Advanced Functions Handbook always included in the box with the HP-15C? I recently came across spiral bound versions of these books and realized that if my original HP-15C came with the Advanced Functions Handbook, I no longer have it, or more likely don't know where it is. I do have the non-spiral bound Owner's Handbook. I purchased that 15C in 1985. So do I need to search high and low for a non-spiral bound HP-15C Advanced Functions Handbook?