55 chevy wagon guys standup!

hey wondering if anyone could spare a min and tell me the width and length of the rear seat in a 55 wagon ..??

 

anyone have a seat back for this year . i have the bottom need a back . Rear seat .

 

There is a guy in on craigslist that has one he may part with. http://atlanta.craigslist.org/wat/cto/2641240574.html

 

I have one.

54 1/2 inches at the top (long side)

45 inches at the bottom