I got the Trumpet at a flea market, so no history on it . I did some research and had it checked out by a player. Overall it plays good but has a small air leak . He said the design is what he called a peashooter like in a Mexican or Latin style. Both Buescher and Conn used the Windsor stencil in the sixties and I believe this was a Buescher due to other Windsor stensils I found on other insrtuments that were Buescher models . Accordingly the case is indicative of early design and style ( latches and hinges ). The valves move freely . Further research from another source believe it is a Buescher ...The serial # is R2564 7 , There is a space between the 4 and 7 .Any additional info will be appreciated.. Thanks for looking and happy offerding !!!! Ok I have another looker who thinks the bracing is similar to a 1956 Holton that he has . Also , I SHIP FOR FREE!!!!!.Dave

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