I use notebooks to write down my favorite photo numbers etc (see last photo) and I was using an old notebook (I've had many notebooks through the decades). I stumbled across these pages that had numbers which are from the mid-80s. What are they you ask? This is how we used to have to keep track of prices/money before computers.

I don't remember some of the symbols anymore but I do remember most of the months which is the last letter. And some of the things I traded don't trade like Plywood.

CA is Candian Dollar
VL is ValueLine Index
CP is Copper of course
SU is Sugar of course

Crude Oil CL was a fun one to trade.