2026-09-28T06:52:36+01:00https://marinefinds.org.uk/datalabs/terminology/object/format/jsonhttps://marinefinds.org.uk/datalabs/terminology/object/format/xmlhttps://marinefinds.org.uk/datalabs/terminology/object11033148438SIGNAL POSTYA cast iron post similar to a lamp post, with revolving top to carry either coloured plates, or an oil lamp with coloured glass at night. Associated with canal or river navigation locks.1P