http://www.loomcom.com/3b2/att_4425_rom/

ROM images from an AT&T 4425 terminal.

These are 2764 equivalent 64 Kbit (8 Kb x 8) ROMs

char.bin                Character ROM (Board position 10B)
455773-1.bin            Program ROM 1 (Board position 2A)
455774-1.bin            Program ROM 2 (Board position 3A)
456305-1.bin            Program ROM 3 (Board position 4A)
456306-1.bin            Program ROM 4 (Board position 5A)