In N.L.R.B. v. Brown Root, Inc., 311 F.2d 447, 454 (C.A. 8), it is said that "in a back pay proceeding the burden is upon the General Counsel to show the gross amounts of back pay due.
Holding that there was no issue of fact as to whether a specific job was covered under a "Highway and Heavy" provision where the employer deducted union dues pursuant to the CBA and its president made a statement implying that the work was covered by the CBA