Fresh installment, the white rook:
Accompanied by a 1 & 5/8"rook for size perspective, this rook has a commanding presence.
Hardly timid. The piece is not only tall but substantial, weighty, like the measured pace of a good game. The solid wood feels comfortable in your hand. It conveys the power a rook should wield. Conversely, it is something to be missed once it is removed from your side. At ten ounces it sits solidly on the table and will not tip until the top is pushed two inches from the upright position.
The piece is also very well balanced: this was achieved by the use of a heavy hard wood which is also weighted at the bottom. I can balance it on my finger if my finger is placed approximately 2 inches from the base.
The dark tower. The black rook differs from the sculpture of the white by sporting a curved versus a straight sally port, narrower arrow slits (but more numerous), and a square uppermost opening.
Six crenellations round the top of each rook.
Detail on the sally ports, as well as the deep masonry lines on the towers. I have neither cleaned nor polished the set, I imagine the wood grain and luster will become even more enchanting once this is done.
I emailed chessfanla about this set already. It does look something like the Lowe set which is a copy of the Anri set from Val Gardena. There's some resemblance to the Lewis set and Terra Cotta army too for that matter, but really there are a ton of chess sets from 18th-19th-20th centuries that look something like this, the wooden "Charlemagne" sets for one. Most usually the Bishops will be a different piece in those sets, however unless the set is British or something. The OP says these are Spanish/American and later than most of those sets anyway, so the shape of the pieces is not surprising. It does look like it could be one of kind esp if what the OP has heard about its origin is genuine but it might be a good idea to check the catalogs of all of the Val Gardena carvers to see for sure if it's one of theirs. I don't think it is.