Glamorgan is located along the southeastern coast.
(November 14, 2025) Macalister reports that this stone's discovery was described by Lhuyd in Gibson's Camden as being "at a place called Panwen Byrdhin in the parish of Kadokston or Lhan Gadok about six miles above Neath." It was then known under the name Maen dau Lygadyr "the stone of the two ox-eyes." These ox-eyes were "two small circular entrenchments, like cockpits," of a kind unknown to Lhuyd elsewhere/
The stone had been in the middle of one of these enclosures but when Lhuyd wrote, it had been appropriated as a gatepost. About 1835, Lady Mackworth , owner of the estate called "The Gnoll" near Neath, took the stone to decorate a grotto. "Being too heavy, [it] was partially broken before removal" (1920), to the detriment of the inscription and shortly afterwards the grotto collapsed and the stone was buried. Westwood in 1846 found it hidden in rubbish (1865) and Rhys (1874) was obliged to have it dug up for inspection. In 1920 it was removed to the museum of The Institution, Swansea, where it now stands.
It is made of a stratified slate-like sandstone being 3′ 6″ × 0′ 7 1/2″ × 0′ 8 3/4"
(November 14, 2025) Macalister reports that this stone was found in a field on the west side of Capel Brithdir, a church remote from the ordinary lines of traffic, in the region drained by the Rhymney. It is now in the National Museum of Wales. A concrete slab was erected to mark its original site.
It measures 7′ 5″ × 3′ 9″ × 1′ 9″.
This is an old Roman altar. Dimensions are listed on the drawing
(November 14, 2025) Macalister reports that this stone was founds on a rockery in front of the rectory house. It is an old Roman altar of very rough workmanship. The material is a gritty, friable sandstone, and the surface is much scaled to the detriment of the Ogham inscription.
(November 14, 2025) Macalister reports that this stone is one of several collected from several different sites in the parish but are now gathered together into a small cluster at the northwest corner of the churchyard of Margam.
This stone is a pillar of red sandstone with rounded sides being 5' 0" x 1' 7" x 0' 10".
The top of this stone has the equilateral Druid cross meaning astrology-magic (from the letter T). It is not a Christian cross.
(November 15, 2025) Macalister reports that this stone is one of several collected from several different sites in the parish but are now gathered together into a small cluster at the northwest corner of the churchyard of Margam.
This stone was found on the summit of Ton Mawr, a height in Mynydd Margam at the head of a tributary of Afon Cynffig. It was carried down to the Margam Museum and deposited there.
The stone's dimensions are 3′ 4″ × 0′ 11″ × 0′ 8″