8 XXX : OldSchoolCoolNSFW

[That is a 1956 California plate,](http://i.imgur.com/laNIKB6.png) which [was used through 1962,](http://www.oldplateguy.com/YOM-Information-for-1956-to-1962-California-Vehicles.html) on that [1957 Buick](https://commons.wikimedia.org/wiki/File:1957_Buick_Roadmaster_4d_htp_-_TT_green_-_fvr.jpg) so it may not be from the 1960s. [Here is a higher resolution version of the posted photo](http://i.imgur.com/h6hjhJB.jpg) and I believe [this is the same model and same car.](http://i.imgur.com/jt4Daps.jpg)
Still has the factory plastic covering the seats. ( yes they used to do that way back when ) No debris around small screws on anodized aluminum sill scuff plate and scuff plate not damaged. No dirt and grime on fender bolt heads located under A pillar ( windshield ) no dirt on jambs. Dark streak seen is from fresh foam weatherguard welting where contact was made. No rust on rocker panels. It's my belief that car was brand new in September/October of 1956 and somebody decided to christen it.