Skip to contentRelative Annual Cost Per Footcandle with Cost of Lighting Analysis, Westinghouse Electric Corporation. One chart, comparing Case A, B, and C in White Light and Straight Mercury, over various types of bulbs - Westinghouse Electric Corporation Drawing No. 53839, drawn by F.B.C., checked by C.J. Forster. ([19]53, June 11) Also included: Three two-page Cost of Lighting Analysis forms (marked Westinghouse Form 28341, Sheet 1 and 2). Form "CA. A" is dated 5/29/53 and is for Conditions Favoring Incandescent Systems. Form "CA. B" is dated 6/1/53 and is for Average Values for all Variables. Form "CA C." is dated 6/2/53 and is for Conditions Favoring Mercury Systems. All forms prepared by C.J. Forster, Jr | Collections | The Huntington