It is definitely not Montmartre. The standards are all wrong. There are other iris similar to Elizabethan Age, such as Celtic Tartan, etc. Did you look on Sutton's site to see if they sell one similar to your NoID? Were your pics of newly opened blooms? Some, like Stage Lights, fade and then would have lighter standards.
Also, it really doesn't surprise me that Spring Wings looks purple in full sun. Most blues look purple in certain light. And even the bluer database picture has a purple cast. I think Absolute Treasure is the only one in my garden that stays blue most of the time.
