oval window bevelled door frame

I have a oval and the door frames are bevelled what years had this? the pan is a 56 but the bevelled doors are interesting as i have a 57 oval without the bevelled doors so i am not sure of the year of the body it does have a number mka.... i will have to get it later but just of interest who knows?

thanks

Ribbed doors finished early 55, does it have heart tail lights?

Whats the chassis number ???

the body number is mka5637 this is stamped onto thebody the fabergestell number of the plate is -1-0850475 and the chasis is a 56 i have confirmed this one but the beveled doors have got me thinking its a earlier body on the earlier pan let me know what you think.

thanks😂😂

bump😂