Technical interior Model A measurement

Wondering if anyone knows the interior measurement from the inside back of the body where the upper back of the seat rests to the floorboard where you would rest your foot on the 1929-1931 Model A roadster and coupe. Thanks for any info.

 

http://www.motormayhem.net/model-a-ford-reference-page/body-specifications/ has about as many published A dimensions as you are likely to find. These pictures originally came from Ford salesman's handbooks.

 

So a slanted line from the belt line to the bottom of the toe board? It’s going to be different from s coupe to a roadster and a 28/9 to a 30/31 I’d ***ume

 

These Ford pics were carefully done...I wouldn't take it to multiple decimal places, but I think that with dividers and/or a good rule you could compare an unmarked dimension with ones that are labeled and get reasonable estimates of what you want. And yes, there will be a lot of variations between styles!

 

sorry, meant from the bottom along the floor to the footrest on the bottom of firewall.