During the cleaning of this lock, i was wondering about the traces of some filled in orifices, as well as other intriguing details.
I went back to the illustrations in ESPINGARDA PERFEYTA, checked and rechecked, and came to the conclusion that this is a typical Portuguese 'fecho de molinhas' (spring lock), later converted to a simplified version.
I can say i made my day, both for the price, which becomes much more convenient, as also for the rarity of these locks ... converted or not.
Thank you for your congratulations
Fernando.
.