an independent corporation under independent ownership, not a division or subsidiary of The Greyhound Corporation) until the end of 1950. [One subtle but significant consequence of the independent status was that the coaches of those two independent companies bore the full names of the Overland Greyhound Lines and the Southeastern Greyhound Lines, whereas, starting about 1935, the coaches of all the captive Greyhound divisions and subsidiaries bore the collective or abbreviated name of the "Greyhound Lines".] Southeastern about 1944 introduced one clever twist along with its use of the Greyhound dog (especially as applied to the sides of the coaches), possibly in part a response to the "Battle of Britain" target-like symbol used (during World War II) with the dogs on the sides of the coaches belonging to the divisions and the subsidiaries of the parent Greyhound firm. The SEGL superimposed the dog onto a compass rose in a way which emphasized the letters SE (for southeast). That usage continued until the GM Silversides PD-3751 coaches began to arrive (late in 1947) with the standard dogs without the compass roses, and until the last of the 1948 ACF-Brill IC-41 parlor coaches and the last of the 1949 ACF-Brill C-44 suburban coaches arrived with their dogs with the roses on the sides, and until the last of the ACF and ACF-Brill coaches with the compass roses later in due course became repainted without the roses. A sharing arrangement The Southeastern GL cooperated in an unusual arrangement on its scheduled trips between Nashville and Knoxville with another carrier, the Tennessee Coach Company (TCC), which was then an independent firm based in Knoxville, and which had begun in 1928. The State of Tennessee in 1929 issued a joint certificate (of public necessity and convenience) to the TCC and the Union Transfer Company (a predecessor of the Consolidated Coach Corporation and the Southeastern GL) for service between Nashville and Knoxville via Murfreesboro, Woodbury, McMinnville, Sparta, Crossville, Rockwood, and Kingston along US-70 (later redesignated in part as US-70S). The two carriers – the TCC and the UTC (later the CCC, even later the SEGL) – shared their joint certificate in an unusual way: One carrier ran in one direction on any given scheduled trip, and the other carrier ran in that direction on that same sked the next day, and vice versa. That is, they ran in opposite directions, and they changed directions each day.