"she does have Maryvonn written on her rear. "
Yes I noticed that, her correct name though was Maryvonne.
The name came from Maryvonne Lastennet née Carn, mother of Louis Lastennet for whom the boat was built in 1928.
She, and her sisters spent most of their lives lobster fishing off north Portugal, see attached pic of preparing lobster pots in the port of Camaret.
Except for an interlude in WW2 when they were requisitioned by the German navy and moved from Camaret to Brest.
See here for more detail pics of one of her sisters.
After WW2 she continued to fish until 1962 when she was dumped on the beach and left to rot 🤔
Cheers, Doug 😎