Help! Someone (unknown) years ago welded the cutoff in the "up" or "ON" position before I inherited it. Two questions: (1903A3 S/C Springfield):

1. Anyone have any ideas on how to remove this weld job in a manner that will cause the least amount of damage to the receiver?

2. Anyone know why anyone would have done that?

(I plan on removing the weld myself, and your suggestions would be highly welcome--likely with a hacksaw and a file of some type... unless someone can tell me a much better way to do so... or turn it over to a gunsmith and let a professional do it).
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