From: Dennis Gibson
Date: 06 Jun 2002
Time: 10:01:15
Remote Name: 150.203.2.85
Have a look at the picture on the right hand lower side of page 46 of The Original Austin Seven (Mills). It shows what is reported to be "original" (and it looks it!) upholstery in a 1926 AD tourer (chummy).
It clearly shows a well worn vertical seam down the front corner of the drivers seat squab. I think that this confirms what you wanted to know, yes?
It would still be nice to have a confirmation from an "original" owner though!
Cheers, DG