The Gipsy Kings - Signed Photograph Maria Callas Autographs on verso there is a

on verso there is a card signed by American chemist Robert Ogden Doremus (1824-1906)

sang for close  to five decades and especially celebrated in the verismo repertoire

Document is 7 x 5 inches (visible window size)

inscribed to "my dear brother

Arthur Nikisch

The Gipsy Kings - Signed Photograph Maria Callas Autographs on verso there is aSpanish flamenco and pop music group founded in 1978, who performed both in Catalonian and Spanish. Nice black and white photograph signed by five members including Nicolas Reyes (lead singer), Paco Baliardo (guitar), Pablo Reyes (guitar), Tonino Baliardo (lead guitarist), and Andres Reyes (vocals and guitar). Size is 9. 8 x 8 inches, some damage over the lowe left corner (not affecting signatures), in overall good condition.