I could use a little help zeroing in on the manufacture date of a Bach Mercedes II Eb cornet (recently purchased). The number is 577942 and I suspect that it was made in the period 1995-2000. A Selmer/Bach representative that I spoke to recently was of no help. Also, does anyone know anything about a Hungarian instrument maker named Janos Lenhardt - active in the city of Pecs. I have one of his (alto?) trumpets that I plan to further restore. Thanks for anything!