This is a silver chrome cornet, embossed with the maker: 
Lafleur
Imported By
Boosey & Hawkes London 

Place of manufacture: 
Made in Czechoslovakia

Serial number:
579632
The serial number dates the instrument as 1975. 

'Boosey & Co. was a London-based music lending library and publisher founded by John Boosey in the 1760s, which later expanded into instrument manufacturing and merged with Hawkes & Son in 1930 to form the music publishing and instrument company Boosey & Hawkes.' ​

The cornet comes complete with its mouthpiece, how-to-play book and a black leather hard case. 

Perfect for a Boosey & Hawkes collector, or for use. 

Measurements: 
Length of instrument - 34.5cm
Diameter of the bell - 12cm
Diameter of the mouthpiece - 2.8cm
Case measures - 36cm x 21cm x 14cm
Total weight - 3305g