Since when has Gibson been making blonde J-45s? My brother and I bought a 1958 J-50 in the early sixties and I know several people who own slope shouldered J-50s and J-45s and ALL of the J-45s have sunburst finishes (except two which have been re-finished) and ALL of the J-50s have blonde finishes. In fact the only difference between a J-45 and a J-50 is the finish. They are (or were) the same guitar with a different finish.