Harlan F. Stone,
Hartley v. Commissioner of Internal Revenue…
“ But this specification is not enough to restrict the effect of the general provisions of these acts which impose a tax on the income, including capital gains, of taxpayers. The use of the word cost does not preclude the computation and assessment of the taxable gains on the basis of the value of property, rather than its cost, where there is no purchase by the taxpayer, and thus no cost at the controlling date. ”
