Camp
Ktisibios's Camp (post "final experiments"). As you can see there are 4 piles of metal surrounding a pool of sulfuric water. Three piles to the west and one to the east. The camp can be found in the North East of Lower Egypt around 1799, 7541.
Metal Piles
Here are some close ups of one of the piles. All 4 piles are identical. They are covered in lightning but are made up of three models (not counting the lightning) which I'll be calling "blue", "gold" and "bar". Blue is the same model as is used for both metal blue and water metal. Gold is the same model that is used for gold and sunsteel. Bar is the same model that is used for Iron Bars and possibly other bars?As you can see bellow the piles are made up of a 3x3 square on the bottom with 6 blue and 3 gold. Then a 2x2 square of 2 gold and 2 blue. A single blue on top. With 3 bars stacked end on end coming off from the top of the pile.
