Trumpet used for Regulating the Journeys of the Children of Israel
Source: TTT
Numbers 10:2, 5, 6
“Make two trumpets of hammered silver to be used for calling the congregation and for having the camps set out. / When you sound short blasts, the camps that lie on the east side are to set out. / When you sound the short blasts a second time, the camps that lie on the south side are to set out. The blasts are to signal them to set out.