Thanx 4 some of the pointers

my pic of ST 57750 73935 +/- 4M from a GPS app & Streetmap of ST 57750 73935

Google maps images are older than Bing, despite Google cars seen this year, locally. My arbiter is the flagstones at 9 Melrose Place, Bing & my pic agree on that they are new. Which confirms I have the location nailed. Despite Bing insisting the address is of the Main Rd (Whiteladies). The houses are too far away to see their number from the road. Or I would have noted them.

The correct location is needed to use with what3words.com which can highlight within 3 metres when linked to, should anyone want to go to the location. the place sports an OS Bench Mark. One that might be contentious. see Photos: the carved kerbstone

It looks like Apple maps are only available for Apple products - thus uninformative in my case.