Sound No. 243
January 1961
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This unit includes:
a short length of black nylon string
a
whistle
(
bottom view
, side view at left)
a
flexible reed
(top view at left)
a
siren
(top view at left)
a white plastic sheet (for a drum head)
a plastic vial (not shown)
a
harmonica
(top view at left)
a 12-page
booklet containing 24 experiments
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