Old MLS Pictures-Where can I find them-If at all?

[Kyle Galloway]

Trying to pinpoint our list price on a flip and doing comparisons with recently sold similar properties. While looking at sq ft, location, # of beds/baths is great-I really want to see the interior pictures of the homes that have sold. It seems like sites like Zillow do not keep them-or i am just not looking in the right place.

Is there a place I can find these old listings that includes the interior pictures online? Or am I SOL? Of course I can look at "for sale" homes-but I think getting at "sold" homes would give me a more accurate comparison.