Thanks to
this resource I have established I have the following ROM set:
ROM 4.1 - Basic Level IV - Graphic Keyboard – Series 2001 & 4000
Which comprises these ROMS from left to right as you view the front of the open PET:
The PET4032/8032 Kernal ROM - 4 KBytes
Position: UD9 - ROM:
901465-22
The Screen editor for BASIC 4, normal keyboard, no CRTC (40 columns) - 4 KBytes
Position: UD8 - ROM:
901447-29
The BASIC 4 ROM CHIPS - 12 KBytes total comprising:
Position: UD7 - ROM:
901465-21
Position: UD6 - ROM:
901465-20
Position: UD5 - ROM:
901465-23 (Patched Version which replaces 901465-19)
Thanks to
this resource for the links to the bin files for the ROMS above.