I have one that came with the car and its framed and not a poster but a print with an extra layer that states 1991 NSX or something I put a picture up. I'm not trying to sell it but my renters insurance would go down if I insursed art or jewerly so I was trying to see if it was valuable so I could insure it. Is there a documented record of sales? I don't believe it's signed but I wouldn't know where to look. Just to replace the glass was I think $120. Thanks