Dave I believe you may be mistaken.
I hate it when I answer my own question. After continuing research I found an owners guide with wiring diagram for Mark 25E electric starting and starting procedures. This motor has the key switch built in the cowl. See procedure 2c and 2d. "…turn key to on position…depress starter button"
Was this the only motor these controls fit? Mark 50E? Mark 55E?
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