Joseph McKenna, Cochran v. United States (254 U.S. 387…
“ In opposition it is urged by the United States that if an assessment was necessary the right to make it was reserved by the repealing act, and that the appellees, as executors, having made a report of the legacies and the taxes thereon, the report and its acceptance by the collector of internal revenue was to all intents and purposes an assessment. It is further urged that, if an assessment was necessary for the purpose of collecting the taxes, it is now immaterial. ”
