jgregor,
They might be 1121C controllers. You can look them up on eBay and compare the photos to yours.
Your switches should look like this if they are 1121 type:
http://images.google.com/images?hl=en&q=lionel%201121
Or this if they are 1122 or 1122E:
http://images.google.com/images?hl=en&q=lionel+1122+OR+1122E
Rob
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