This is a vintage A=440 Hz tuning fork, stamped “Germany”, likely produced in the mid-20th century. It is made of nickel-plated steel and measures approximately 5 inches long. Markings include the pitch standard (A=440) and a maker’s mark in the shape of a diamond or arrow, common among German manufacturers of the time. Features:     •    Frequency: A = 440 Hz (standard concert pitch)     •    Material: Nickel-plated steel     •    Country of origin: Germany     •    Length: Approx. 5”     •    Condition: Excellent vintage condition with minor surface wear consistent with age Ideal for musicians, music educators, collectors, or those interested in mid-century music tools. Produces a clear, sustained tone when struck — great for pitch reference or historical display.