OP the pic you posted is that of a Shimano Dura Ace FC-7110 http://velobase.com/ViewSingleComponent.aspx?ID=75B41CAA-CB42-4FD7-B267-8876DE799DD9&Enum=115&AbsPos=148 Look at the insert page with the crank on the red wood surface top right
@tarboy started
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OP the pic you posted is that of a Shimano Dura Ace FC-7110
http://velobase.com/ViewSingleComponent.aspx?ID=75B41CAA-CB42-4FD7-B267-8876DE799DD9&Enum=115&AbsPos=148
Look at the insert page with the crank on the red wood surface top right