Little Lady is not only the smallest playable harmonica in the world, but also the first instrument played in space.
Namely, Walter Schirra used Little Lady to play "Jingle Bells" during his mission on the Gemini 6 spacecraft in 1965.
Reed plates (material, thickness): brass, 0.9 mm
Reed plates (surface): brass
Reeds (number, material): 8, brass
Comb (material, color): pearwood, brown
Comb (finish): pearwood, double lacquered
Mouthpiece (surface): pearwood
Cover plates: stainless steel
Keys: C
Type: diatonic
Tuning: major
Number of holes: 4
Tonal range: 1 octave
Length: 3.5 cm / 1.5"