Turn curiosity into motion: original blue and white Hand-Crank Air Siren, a recreational mechanical conversation piece.

Hand-Crank Air Siren | II-107

$19.99
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Turn curiosity into motion: original blue and white Hand-Crank Air Siren, a recreational mechanical conversation piece.
  • Turn curiosity into motion: original blue and white Hand-Crank Air Siren, a recreational mechanical conversation piece.
  • The interest is in the mechanism: close-up of the original ribbed white crank grip and printed blue side housing.
  • Printed details, mechanical character: original white rotor, five blue support spokes and raised Make It Loud lettering of the II-107 siren.
  • Blue and white hand-crank air siren on a maker bench. Printed housing, rotor and hand-operated crank; recreational mechanical display, not a certified warning device.
  • Blue and white II-107 hand-crank air siren with Make It Loud lettering against an indigo studio background.
  • Close-up of the white ribbed crank grip and blue side housing of the hand-crank siren.
  • Upper-handle detail of the blue and white hand-crank siren, showing the printed cylindrical grip and front fastener.
  • Blue and white II-107 hand-crank air siren on a wooden workshop bench.
  • Blue and white II-107 hand-crank air siren against a light gray studio background.
  • Close-up of the hand-crank air siren's blue printed housing, white rotor and Make It Loud lettering.
  • Turn curiosity into motion: original blue and white Hand-Crank Air Siren, a recreational mechanical conversation piece.
  • The interest is in the mechanism: close-up of the original ribbed white crank grip and printed blue side housing.
  • Printed details, mechanical character: original white rotor, five blue support spokes and raised Make It Loud lettering of the II-107 siren.
  • Blue and white hand-crank air siren on a maker bench. Printed housing, rotor and hand-operated crank; recreational mechanical display, not a certified warning device.
  • Blue and white II-107 hand-crank air siren with Make It Loud lettering against an indigo studio background.
  • Close-up of the white ribbed crank grip and blue side housing of the hand-crank siren.
  • Upper-handle detail of the blue and white hand-crank siren, showing the printed cylindrical grip and front fastener.
  • Blue and white II-107 hand-crank air siren on a wooden workshop bench.
  • Blue and white II-107 hand-crank air siren against a light gray studio background.
  • Close-up of the hand-crank air siren's blue printed housing, white rotor and Make It Loud lettering.
Hand-Crank Air Siren | II-107

Hand-Crank Air Siren | II-107

$19.99

Bring mechanical curiosity to your collection with the II-107 Hand-Crank Air Siren from Indigo Inkworks. This 3D-printed physical product features a crank, geared mechanism, rotor, and siren housing.

A distinctive piece for mechanical enthusiasts, makers, and collectors who enjoy hands-on mechanisms and unusual desk displays.

  • Hand-crank mechanism with printed gear and rotor components
  • Physical 3D-printed product; not a digital download
  • Layer lines and minor surface variations are part of the printing process

Use: Recreational mechanical demonstration. Not sold as a certified emergency warning device. Keep fingers clear of moving parts and avoid operating near ears.

Made to order: allow 3–5 business days for production before shipment. Transit time is additional.

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