Deletion of List of UK Admiralty Charts, 1967

Comment: per .  This is obviously a |spinoff or appendix to Admiralty chart.  It seems to be the only year detailed but this makes it a good example of what would be produced in such a year in the pre-Internet era.  Examples are appropriate and helpful in understanding the topic and so quite valid.  Deletion would be disruptive and the nomination doesn't even seem to be suggesting this – just musing about various approaches to development
Stance: keep
Cited policy: Wikipedia:Arguments to avoid in deletion discussions (WP:NOTCLEANUP||WP:SPINOFF)