Mahlon Pitney, Farmers Mechanics Savings Bank of Minneapolis v…
“ A tax upon their property has no such necessary effect. It leaves them free to discharge the duties they have undertaken to perform. A tax upon their operations is a direct obstruction to the exercise of Federal powers.'But we deem it entirely clear that a tax upon the exercise of the function of issuing municipal bonds is a tax upon the operations of the government, and not in any sense a tax upon the property of the municipality. And to tax the bonds as property in the hands of the holders is, in the last analysis, to impose a tax upon the right of the municipality to issue them. ”
