The October 2003 build model shows to be a G3 PowerPC 900MHz 14.1-inch LCD, with 32MB VRAM.
{ info as follows, from database app http://MacTracker.ca -- cross check with http://everymac.com }
Introduced April 2003
Discontinued October 2003
Model Identifier PowerBook4,3
Model Number --
Order Number M9009LL/A
Original OS Mac OS X 10.2.4 (6I34) and Mac OS 9.2.2
Maximum OS Mac OS X 10.4.11
Hardware Test AHT (iBook) 1.2.4
{an earlier 14.1-inch G3 iBook shows similarly, but with different Order Number M8862LL/A}
(A model number such as A1007 may be used across several builds, in brand/name series)
So this would not be a G4, as they were not available until a later build year upgrade model... unless it
has been mis-identified by the seller in one way or another. If the serial number is known or available
to you, you can enter it into an online database lookup tool to see more about that specific unit. Note:
a second page tab or button may allow more specific info on your exact SN build, not readily apparent.
• Mac Serial Number Info - Lookup your Apple Serial Number:
https://www.powerbookmedic.com/identify-mac-serial.php
Good luck & happy computing! 🙂