One hole is a water drain, another is for access to the head of a body bolt. I don't remember what the other one is there for?

Thanks Chip, hopefully someone might have a picture of one of these installed, I am going to see if I can make a pattern up.

A couple more, in the second pic the metal floor has not been nailed in. Lining up the rumble lid in the body was the hardest part of the whole restoration. I suppose the alleged drains allowing the whole rear end of the body to dissolve didn't help.

The rear pan has a triangular stop for the rumble lid spot welded on. There are rubber bumpers that fit on the stop to keep the lid open enough for the seat cushion to angle back a little making the seat a bit more comfortable that if straight vertical. If you don't get a photo of one installed I will visit my '31 Cabriolet in the next week and could take a photo or two.

Here is a few more that might help, most photos I have don't show it. You can see the triangular piece in the earlier photos above but just the end of it.

My car is a few states away waiting for a move so no help there for now.

Dave

 photos by John Potter in Ralph's shop