The Bluesbox Collection The tuners are solid brass and have European style riveted gears - possibly indicating that this guitar was built before the rise of the American guitar hardware industry - or the maker simply used imported tuners... This guitar had some pretty severe splits on the back that I had to repair. I also reglued several interior braces and installed a Bridge Doctor. This guitar plays great and has excellent tone. The spruce top and maple body account for the instrument's surprising volume.