Jaroslav Malina and his Orchestra
A: Sung by Oldřich Kovář
B: Sung by Setler's Ensemble [a.k.a. Setleři]
A: Waltz from the film "Nobody Knows Anything" [in Czech: „Nikdo Nic Neví“]
B: Foxtrot from the film "Nobody Knows Anything"
A mx: 45424 (label); 45424 AV MADE IN CZECHOSLOVAKIA (runout; AV = etched).
B mx: 45426 (label); 45426 AV MADE IN CZECHOSLOVAKIA (runout; AV = etched).
Recorded Prague, November 15, 1947.
Mercury, by the way, was right to complain about "damaged" and "unsaleable" records that the Czechs were sending them. My copy is near-mint, but it has lots of flaws in the shellac, pockmarks and shallow groove-like indentations that crisscross the upper third of the record. It's a so-called "bad fill" that was pressed when the press was not hot enough. I can't imagine that many of these records actually sold even though the music is nice film music of the time.
This is an example of Mercury Record's short-lived trade adventure with Czechoslovakia.
On Nov. 6, 1947, Mercury made a deal with the state-run Czech record company Gramofonové Závody (= Gramophone Record Factory) a.k.a Gramophone National Works Corporation (GNWC), allowing it to borrow Gramophone-owned matrices and import a certain number of Czech-produced records every year (Billboard, Dec. 3, 1949, page 15). These latter records belonged to at least two different series: a B50000-series for Czech polkas and waltzes and a D60000 series for American jazz originally recorded by Keystone Recordings, Inc. (whose matrices Mercury had acquired after Keystone's bankruptcy in early 1948). Apparently, there also was a B15000 series with Bulgarian and Indonesian(!) music.(source)
Mercury's deal with the Czech included the permission to issue German Classical music recordings in the U.S. whose matrices were in Czech possession. They had been recorded by the German Telefunken before the war, then licensed to the Czech Ultraphon during the Nazi occupation, and confiscated as enemy property by the Czech state in 1946 (Billboard, Apr. 16, 1949, page 26; Billbord, July 9, 1949, page 16).
The problem was that Telefunken had made a deal with the American Capitol label to release that same music in the United States, and Mercury was violating Telefunken's copyright on these recordings. Capitol sued Mercury in March 1949, and Mercury soundly lost this suit in 1952.(source)