How do I get the spectacles?

Hint 1 of 8:

In case you haven't found them, they're in a box on a shelf in the upper-left
portion of the screen.  You'll need to walk through the door to get them.

Hint 2 of 8:

This puzzle will require a fair amount of teamwork.

Hint 3 of 8:

You'll need Fulbert to help you get a pair of glasses out of the box.

Hint 4 of 8:

Have him climb up the colonnade to open the box.