To provide a label seal which makes patterns, messages, etc., visible from both front and rear surface sides.

This label seal has a writable mount 110 which is formed with a mount side adhesive layer 112 at the peripheral edge of its rear surface and has mount side release paper 111 peelably mounted at the mount side adhesive layer 112 and a transparent film 120 which is formed with a transparent film side adhesive layer 122 on the rear surface and has film side release paper 121 releasably mounted at the film side adhesive layer 122. The transparent film 120 is mounted at the front surface of the mount 110 in part of the film side adhesive layer 122 in the state of directing the film side release paper 121 toward the front surface of the mount 110.