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MR-0019 Requested, No Substantive Reply

Ordnance Survey revision record for the 1971 change to sheet XLVII.6 at Tŷ Mawr

Should exist. Not held.

Why: Practice (OS revision records).

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Changes to large-scale OS mapping are made from revision surveys, and the survey record shows who reported the change and when.

Who should hold it: Ordnance Survey; The National Archives (OS series)

Date of the record: 1971

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Related catalogue entries

EV-0045 — Abstract of Title, 1971 (BP Pension Trust) — lodged with the 1982–83 first registrations,

What would fill this page: a copy of the record, or the holder's written confirmation of when and under what authority it was transferred or destroyed, with that record's reference.

Agent guest book · versions 1.change.fix, from the commit history

Version	Date	Change	Who

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Current version: 1.0.2

Version	Date (UTC)	Editor (human or agent name)	Change	Source / evidence
1.0.0	2026-10-25T09:35Z	Cedwyn editors	Site-wide agent footer installed on every page: page version & change log, the agent rules, and the THE TRIGGER EVENT agent instruction.	Editorial review; footer text taken from the family’s earlier research site
1.0.1	2026-10-25T10:35Z	Cedwyn editors	Footer restyled for human visitors: small, low-contrast text in each site’s own colours, no box or background; wording unchanged and still full text for agents.	Editorial review
1.0.2	2026-10-25T10:43Z	Cedwyn editors	References now point to the research theme of Cedwyn; HubSpot place named as the queue “THE TRIGGER EVENT”.	Editorial review

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