Thanks for the information, advice & education (I now know what a Scott's cross bolt is) and I do plan do have the chokes opened up and use it for upland.

Kyrie, do you have any information you can share that leads you to believe it is a Model 427? (I did see a 1955 Mugica catalog listed on Ebay that references a model 427) Also, what identifies it as having a reinforced frame?