Some users have asked about importing fonts under ID numbers already
reserved to Apple fonts (although not necessarily filled by existing
fonts).
The Font Manager chapter of Inside Macintosh, Volume IV (Apple Part
#030-1389-A), states that font family numbers 0 through 127 are reserved
for Apple's use, and numbers 128 through 255 are assigned by Apple for
fonts created by software developers.
This is no longer true: Developer Technical Support does NOT assign font
family numbers.
When you copy a font into the System file (using the Font/DA Mover), and
there is an ID number conflict, the ID number of the font being copied is
changed.
Here is a list of fonts and their ID numbers:
New York ID = 2 Geneva ID = 3
Monaco ID = 4 Venice ID = 5
London ID = 6 Athens ID = 7
San Francisco ID = 8 Toronto ID = 9
Cairo ID = 11 Los Angeles ID = 12
Times ID = 20 Helvetica ID = 21
Courier ID = 22 Symbol ID = 23
Taliesin/Mobile ID = 24
These are the ID numbers for the LaserWriter Plus fonts:
Zapf Dingbats ID = 13 Bookman ID = 14
Helvetica Narrow ID = 15 Palatino ID = 16
Zapf Chancery ID = 18 Avant Garde ID = 33
New Century School Book ID = 34