One Artist whose works are very bankable is Picasso. It is noticeable how what could be called his lesser works...prints, lithographs and etchings have a very strong market. I consider these a very secure (blue chip!) investment. One word of warning ... this is a lucrative market for the fakers, dodgers and divers ... be very careful. Buy from a responsible dealer (or collector such as myself!). In particular be very cautious about items offered on Ebay.
I consider Art as a terrific investment (especially in these uncertain times). I have always liked to diversify as much as my taste allows. Which, co-incidentally is a very sensible investment tactic.
I have a few genuine Picasso lithographs for sale. They are from the 1924 Ballet Russes programme. They are not signed or limited run ... but who knows how many are about. I believe they are very scarce, perhaps no more than 50 in existence? Quite hard to find images of on the internet. One thing is for sure ..they can't make any more of them.
In my opinion lithographs are a step up from ordinary prints and represent a good "entry level" way of obtaining a Picasso.
Have a look at them HERE