diff --git a/Documentation/API.md b/Documentation/API.md
index af78d55..ff8dc3c 100644
--- a/Documentation/API.md
+++ b/Documentation/API.md
@@ -494,7 +494,7 @@ Each painting includes:
 
 | Field | Meaning |
 |-------|---------|
-| `has_influence_links` | `true` when the work appears in any influence row — 3D gallery shows a golden lamp above the frame |
+| `has_influence_links` | `true` when the work appears in any influence row — 3D gallery shows a golden lamp on a shared rail (40 cm above the tallest frame in the hall) |
 | `checkup_checked` | Reviewed in checkup / debug workflow (gold frame in 3D when true) |
 | `checkup_fixed` | Image replaced via **Fix it** |