Digging through a bunch of T fan blades I found these, does anyone know what some are for? Some look like accessory with early fan blades, Bob
The one with the ring looks like Maxwell except for the pulley and mounting arm. The weld may indicate some modification. Otherwise something else was using this blade and hub.
For reference here are 2 types of Maxwell Model 25 fans. The rusty version was 1914 and the one with belt was 1915 and later.
If you were to label them ( example #1, #2, #3 etc.) It would be much easier to respond.
I think the top right one in first picture is a Dodge Brother's fan.