Reverse "CROSS" side of the upper Trail Stone.
Photo by Don Gilmore:
The beveled edges, so obvious in this photo, suggest that this stone was part of a vertical surface, rather than a floor stone IMO. Both Trail stones are beveled, with that of the Don stone being less pronounced than the Cross stone, to a far greater extent than would be necessary for use as flooring. They both may have been set into a plastered wall, for example.
That the size, shape and proportions match that of the Stone Crosses is note worthy as well.
One arm of each being offset and narrower than the other....
In my opinion, the PSM's have never been inside a church, or in what is now Mexico.
If they were on a church floor, why doesn't the cross stone show the same wear? Heavier traffic on the DON stone, could answer that, but if you look closely at the DON stone, that is not wear. What kind of traffic would target the letters only? None.
I had commented long ago, that some of the faint lettering, and marks on the stones, could actually be erasures from the carver. The DON stone seems to also show this. While there are some original imperfections such as tiny holes from roots, or insects, the letters have tools marks, where they decided to take that off. You will notice that the spaces between the letters are not riddled with these tool marks.
I believe that after the letters were chipped, another stone could have been used to smooth the stone some.
I failed to get the Don stone in the post