Mills bomb incorporated into the Mills Bomb. The Mills bomb was adopted by the British Army as its standard hand grenade in 1915, and designated the No. 5. The Mills bomb underwent numerous modifications. The No. 23 was a variant of the No. 5 with a rodded base plug which allowed it to be fired from a rifle. This concept evolved further with the No. 36, a variant with a detachable base plate to allow use with a rifle discharger cup. The final variation of the Mills bomb, the No. 36M, was specially designed and waterproofed with shellac for use initially in
Interstate 70 in Maryland for the latter interchange, MD 75 was relocated east of New Market. The existing interchanges at MD 32 and MD 97 were converted from two-way connector ramps to diamond interchanges. I-70's interchange with MD 27 was expanded from a four-ramp partial cloverleaf to a six-ramp partial cloverleaf in 1977. Exit numbers were added east of Frederick in 1978; however, these exit numbers were each 2 less than the present numbers, which were marked in 1983. I-70 was relocated away from the original alignment of US 40 between its junctions with MD 144 in Frederick and Bartonsville around 1987; the old