I am trying to find what a 1991 Volvo 740 GLE originally sold for

Question

What would be a good resource to find the original sales price of a particular makemodel of car IE I am trying to find what a 1991 Volvo 740 GLE originally sold for

Answer 1

for whatever reason some of my customers still have the original window sticker for their cars, stashed in their gloveboxes. if i remember right these went from 25k to 32k u.s dollars.