Here are some interesting cards I found tonight while searching my basement for something else. I have had these cards for nearly 15 or 20 years.
These two cards are Apple III Intelligent Controller cards which interfaced with either a UniFile or a DuoFile which were external Apple Twiggy disk units. I have one dated 1982 and another dated 1983.
The above six images are my card dated 1982.
The above 5 images are from my card dated 1983.