Who doesn't enjoy a rainbow?
This 2012 Panini Copperstown Collection Ron Santo rainbow took me about eight months to complete.
The base card below was easily obtained and I first posted it last November.
I picked up the blue and red versions, #'d to 499 and 399 respectively a couple of months later.
The last one, #'d to 299 proved very elusive. After seeing a couple early on that got too pricey for my taste, it seemed to disappear. This one finally showed up this month and actually cost me less than the higher #'d versions. Mission accomplished.