⚠ No class in the bridge ontology fits this itemAdd a class
The ontology would need an anchor-block class.
How the sheets named it
block, bottom510A540A
Every crop it was read in — the drawing beside what the model took off it
Page 16
crop
p16_r05Detail
- block, bottom510A×1rectangular
1'-0" ft-in width
crop
p16_r11Detail
- Anchor block540A×1rectangular block
1'-0" ft width