1884 2 Dec. 6/3 The annual royalty income of the Bell Company is $7,500,000.
1910 19 Feb. 424/3 The sale price of coal land must necessarily be less than the gross royalty income that the same land would bring at the prevailing royalties.
2002 W. Pitman 492 He had asked them what they thought his royalty income per year might be for public performance of his work.