Regal G-7533 - Two variants of Bo-La-Bo (A-side) added. This is the Ted Lewis Columbia recording of 12 Jan 1920, orig. issued on Co A-2895. B-side is by Prince's Dance Orchestra. Good images of both sides of 1st pressing (#1) on discogs.
Regal G-6172 - B-side image added. Porcupine Rag was recorded by Prince's Band in 1910 and orig. issued on Columbia A-901, which gives the composer as Chas. J. Johnson. Correct name is Charles L. Johnson (in Rust and Sutton). - Sutton's Ragtime on Records, 4th ed. can be downloaded on UCSB website.