This moving image file of RCA sound recording equipment from 1937 is from the private collection of Jyoti Chaukhani. The equipment was used for talkie production at Bharat Lakshmi Pictures Ltd.

Advertisement of RCA sound reproduction equipment, "the best by every test". The equipment's marketing agency is held by a talkie distributor- the Empire Talkie Distributors- with offices in Delhi, Lahore, Karachi and Calcutta. The advertisement…