LEGO Dark Stone Gray Sound Brick with Transparent Top and Klaxon Alarm Sound (62931)

LEGO Dark Stone Gray Sound Brick with Transparent Top and Klaxon Alarm Sound has been used in at least 1 LEGO sets over the past 16 years, since it was first used in 2008. You can also find this part in at least 3 other colors. It has a design ID of 62931 which can usually be found molded into the bottom of the part.

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