Autograph letter signed from Johan C. Hock to Leon Picard

Johan Hock writes to Leon Picard about the Guarnerius violin which belonged to Adolph Brodsky. Hock has been in correspondence with Hill & Sons who seem reluctant to authenticate the instrument. If they do not think the instrument is a genuine Joseph Guarnerius del Jesu, they can state so. Without the Hill guarantee, it will be very difficult to sell the instrument in England, on the Continent or in America. Hock will check whether Hill can be compelled to give a guarantee. The letter is dated 28 Jun 1939.