
ObjID54-1
Gibbs: The gnomon hole is 29 mm deep, and is emphasized by a relief margin at back. [...] The sides and back are rounded.
Measurement record: pipeline ObjID 54, matched to this dialface by inventory number.
| Quality grade | B (completeness 14 %) |
|---|---|
| Dial surface | sphere (preferred, not decisive) · fit residual mm: cone 3.63, cylinder 3.68, sphere 3.63 |
| Latitude φ | no latitude determined |
| Engraved lines | 9 hour lines, 1 day lines |
| Cone half-angle α | not applicable or not determined |
| Measured | 2026-06-12 21:15 |