The 615 was introduced in 1963 and remained a popular mid-range guitar throughout its five-year lifespan; by the time it was retired it was advertised as "our most popular full size birch Flat Top."
Budget features like painted fret markers were coupled with the fancier look and durability of a floating bridge and tailpiece for a versatile, good looking guitar.
Still widely available on the auction and secondhand market, this Harmony-built guitar remains popular.
1964 at $19.45
as the 57K0615L
Fall/Winter 1967 at $24.95
as the 57A0615L