Show 15 Killed in in Jewish Grenade enade Attack JERUSALEM Dec 29 GD At R-At At least 12 Arabs two British constables constables constables con con- stables and one Jew were killed In a clash at Jerusalem's historic Damascus Damascus' gate Monday after Jews had hurled grenades and sprayed an at Arab rab bus with machine gun bul bul- bul lets Police at at the scene said Baid the melee melee- started ted when the occupants of a Jewish taxi heaved a grenade Into nto a crowded street near the massive massive massive mas mas- sive stone gate and m machine machine- gunned an Arab bus bu preparing to leave for the Arab all-Arab town of |