I have seen at least 2 other true 1/1 Oscar Robertson cards and several printing plates go off on ebay but nothing compares to this one:
Quad patch. 2 are solid green patches...the other two are 3 colors each
after receiving this earlier in the week:
Along with several other small bits like a couple of Legends Autos for my set this is the best mailweek I have ever had...even topping receiving an insane quad auto a couple years back.