I am replacing the seats in an "Inc." IG. They were previously "repaired" and are a blend of original and damaged woods that are beyond repair. I believe that I am able to trust the pattern from the ones that I have but what I am not able to identify is how the seats were originally joined. There are no dowels or mortises present in any of the joints. Does anyone have experience with these that can tell me how they should be assembled? I am also interested to know how these were originally caned. Are the seats in the IG at the Clayton Boat Museum original caning (Dan)? Attached are pictures of the seats that I am replacing.