To provide a portable seal with a projecting spindle having a stamping face formed on the surface of a coin-like stamp base 2, and a seal container constituted of a lid 4 for covering the spindle of the portable seal and a crowning fitment 6 for keeping the portable seal and the lid 4 in one piece.

The portable seal is structured of (a) the spindle which projects from the surface of the coin-like seal base 2 and has the stamping face formed on the upper surface of the spindle and a mark 3 shown on the back and (b) the lid 4 which has the same diameter as the stamp base 2 and a hollow part, of the size large enough to accommodate the spindle, containing a cinnabar seal ink at the bottom. In addition, the seal container is structured of (c) the crowning fitment 6 which has a side wall formed on both side parts of a curved surface sheet and a groove formed in the center. (d) The spindle of the seal base 2 is fitted into the hollow part of the lid 4 and fixed by the groove and the side wall of the crowning fitment 6.