If you haven't caught on yet, don't always TRUST the Navsource Dates. Sometimes the WRONG ship is credited in a photo on Navsource. Heck even the dates on the original photos at NARA in the 80-G collection have to be taken with a degree of caution. Many times the date provided is when the negatives were TURNED-IN to whoever was cataloging them. In the case of the large units, like battleships, there generally are a LOT of photos of them and looking across a multitude of images and their dates can get you at least in the ballpark.
Plus, knowing the configuration of the ship over time really helps to set the date range.
In USS IOWA's case, she had several Camo Schemes/patterns during WWII. Besides starting out with Ms 22, her FIRST Dazzle scheme was a little different in having feathered edges. Not long afterwards she went to the more conventional sharp edge pattern. (I have a June 1944 dated image with sharp edges to her dazzle camo scheme) Then when she returned stateside in late December 1944 for an overhaul/repairs, she emerged in March 1945 painted in Ms 22.
