What you'll need:
House numbers - found at a hardware store, or online for more vintage options
2 screws per number
Screwdriver
A selection on vintage books - found at charity stores
To assemble:
Remove pages from book
Place the house number in the middle of the cover of the book
Screw the house number into the book using screwdriver
Repeat with the other numbers to coordinate with the amount of tables at event.