|Art Gillham "The Whispering Pianist" making an electrical recording ca. 1925|
|Label of the first Columbia electrical recording.|
Brian Rust shows Columbia's first try at electrical recording was in November, 1924, but no records issued. The next electrical recording session was on February 25, 1925 when Art Gillham recorded 5 electrical masters. He recorded another electrical master on February 26, 1925 and another on February 27, 1925. On February 27, 1925 Columbia began using the Western Electric electrical process for most recordings from that date forward.
I do not know the release date of Columbia records 326-D, 328-D and 343-D (which contain the fives masters from February 25, 1925). The High Fidelity article states the first electrical recording released was in April, 1925 by Victor of an excerpt of University of Pennsylvania's Mask & Wig Club. Brian Rust's The Victor Master Book, Vol 2 (1925-1936) shows the Mask and Wig Club's recording of "Joan of Arkansas" to be Victor's first electrical recording (master 32160) made on March 16, 1925 and issued on Victor 19626.