Having my IIsi ROM SIMM in front of me:
4 ROM Chips labled with a big VLSI and a copyright by Apple 1988.
On top left corner labled with "Apple Computer" and marks for the different ROMS: LL ML MH ROM.HH
On the bottom under the Chips:
RAM A 512K ROM SIMM B ROM ROM C 030-4339 D
Its a green card, 64-pinner
On the back side:
APPLE COMPUTER
820-0241-02
1988
4 ROM Chips labled with a big VLSI and a copyright by Apple 1988.
On top left corner labled with "Apple Computer" and marks for the different ROMS: LL ML MH ROM.HH
On the bottom under the Chips:
RAM A 512K ROM SIMM B ROM ROM C 030-4339 D
Its a green card, 64-pinner
On the back side:
APPLE COMPUTER
820-0241-02
1988