Push-Pull focal length encoder of a Quantaray (Sigma) 60-200mm lens.
This particular chip is not read by the Maxxum 7D.

Looks like four bit binary. Codes I read from left (long 200mm) to right (short 60mm)are:

1101,1100,0100,0101,0100,1000,1001,1011,1010,0010,0111,0110,1110,1111.