Here's the picture I sent to my seller, to get a partial refund on my mismatched pair of Simplex shifters :
http://www.ece.ubc.ca/
It's quite possible that both his shifters and my shifters are from the same lot at the factory, and someone botched things up and selected 2 rightside shifters for his pair, and 2 leftside shifters for my pair.
- Don Gillies
San Diego, CA, USA