Thanks for your comments. This series really gets me reconciled with my EOS3, which I did not use a lot in the last years (since I started LF and MF, in fact).
Claire, no the baots there are rebuilt of traditional designs for river Loire. The smaller is called a "futreau", the two bigger would be "toues". They were used for fishing and goods transport. There were even bigger boats ("gabarres") on the river in the 19th century.