In all of my research... on this ship specifically and for those that i've built for museum display i have... as i'd stated found a multitude of discrepancies with the appearances of vessels during the ww1 era and before... i researched through a couple hundred sites looking for details and pics... plus deckplans... i'd actually been to those that you directed me to... amongst many others...... the pic i'd uploaded above was to give a general reference so people could get some idea what i was modelling... i had a choice of about 5 turret shapes... round being the ones that were origionally mounted when the Minnesota was commissioned, a more squarish type... (i'm guessing done during one of the refits)... the ones in the photo above.. and one that appeared to have more sloaping sides... with a flatter back pannel... In my work at the three museums that i did vehical and weapons identification for, we were constantly plagued with problems caused by artists renditions, miss-labeled or miss-identified vehicals in the photo's we were handed and so forth... If i'd been so inclined i could have modeled the turrets as a sloaped front with rounded sloaping sides and a squarish overhang at the rear, which was also a common style of turret in use both with the US Navy as well as the Brits and several other countries... i chose this style based on a variety of resource materials... it's entirely possible that some of the reasources i've used were in error.. but i cannot do anything about that except report to the sites that they need to verify their pics for accurracy... one site claimed anothers was in error.. several refered to pics placed in books that i don't have access to... and argued that one author or another was in error...  i could i suppose if so inclined pick out about a million discrepancies or errors with the works of any artist, 3d or otherwise... where-in details were not what i thought correct... however....