I AM Vintage Pinback Button

I've become kind of obsessed with this button, which through very simple means manages to invoke many many things at one. Immediately it made me think the “I Am A Man” protest signs from the Civil Rights era--and here, without a noun, it could stand as a demand for equality, dignity, and respect for each and all. Simultaneously, the letters spell "AIM," evincing aspiration but also suggesting a direct pointing at a target. And, with the cream colored oval shape suggesting an egg, one might perceive an animal rights (chicken rights?) message too! I have no idea who made it or what specifically for, but I think it's pretty brilliant.

 2 3/4 x 1 3/4 and in very good vintage condition.