I believe I have some on tape - Mackenzie lists it as a 1951 series, and
cites 13 as the highest issue number in the series, if I read correctly

There was also Orchestras of the Nation and Orchestras of the West.

John, do you have a list of the selections/performers on your 

joe salerno

John Ross wrote:
> Does anybody have information about a series of 16-inch transcription 
> discs called "Orchestras of the World; Produced by the Economic 
> Cooperation Administration"? Probably from around 1950.
> They're fully produced radio programs of performances by European 
> orchestras (BBC Symphony, Vienna Philharmonic, RIAS, Concertgebouw, 
> Suisse Romande, Radio Eireann Symphony, etc etc.) with introductions and 
> "intermission" interviews related to postwar economic development.
> Are these things taken from commercial recordings or from domestic live 
> concert or studio broadcasts? Are they documented anywhere?
> John Ross