|Country of origin||U.S.|
|Location||New York City|
At age 14, Thiele was a disc jockey for his own jazz radio show, edited his own jazz magazine, and played clarinet with bands in New York City. He started Signature at age 17. Thiele was head producer and president of the label. Its musical director was orchestra leader Ray Bloch.
Some sources recite that Signature closed in 1948. However, other sources indicate that the label continued to release records into the 50s, but that by the late 50s it was moribund. Having freelanced and produced for Decca Records and its Coral and Brunswick labels, and served as vice president for A&R for Dot Records, Thiele announced in May 1959 that he was reactivating the Signature label. The venture appears to have been in partnership with Steve Allen, one of the co-owners of Hanover Records, who brought the label into the arrangement. The new company was known as Hanover-Signature Records. Orchestra leader Milton DeLugg, who had worked with Thiele at Dot and Coral, was named musical director.
- Yanow, Scott. "Bob Thiele | Biography & History | AllMusic". AllMusic. Retrieved 6 July 2016.
- "The Labels of Bob Thiele" (PDF). Both Sides Now Publications. Retrieved 17 December 2016.
- Watrous, Peter (1 February 1996). "Bob Thiele, 73, Record Producer for Jazz Legends". The New York Times. Retrieved 5 July 2016.
- "Billboard Magazine". 27 April 1959. pp. 3–4.
- Gart, Galen. "First Pressings: 1959". Retrieved 17 December 2016.
- "Billboard Magazine". 1 June 1959. p. 11.
- "Billboard Magazine". 1 June 1959. p. 2.
- "Signature Label Discography". cat45.com.
- "45 Discography for Hanover Records". GlobalDogProductions.info.