SECTION 1. Section nine of Act Numbered Eleven hundred and twenty, as amended by Acts Numbered Eighteen hundred and forty-seven, Nineteen hundred and thirty-three, and Twenty-three hundred and seventy-nine, is hereby further amended by adding, at the end thereof, the following proviso:
"And provided further, That this limitation shall not-apply to sales made to a provincial or municipal government or to any other branch, subdivision, or entity of the Government."