Slanted slate roof

block game:slantedroofing-slate-east-free · from betterruins

Produced by (1)

Filters
RecipeCategoryIngredients → output
Slanted slate roof (Item Recipe) grid

Found in structures (3)

StructureKind
forgottenvillage storystructure
megastructures-mountaincastle-ogdred-o10 structure
largeruins-0408-virrno-o7 structure

This confirms the schematic(s) contain this code somewhere, not where or how many times -- the per-instance block-entity decoding used for tapestries isn't run for every content type.