Labbacallee, county Cork.

The gallery comprises a large rectangular chamber, with a small one behind it, separated by a dividing slab,
one top corner of which has been trimmed off to leave a soul-hole or 'half-porthole'.
The photo below shows part of the chamber looking out to the entrance.

The dividing-slab of the gallery showing the 'soul-hole' or 'half-port-hole'.

Click on the picture to see the whole tomb.