maps.app.goo.gl/wgSZ4nGvWCxP... seems to match up with the pic.

The tablet is built into No. 38/40 Emma Street, obscured on Streetview by a blurry patch www.vhscot.org.uk/applicants/p...

Aye, comes across as a slightly spiffy bollard.

"The gift of Provost Mitchell 1869" www.geograph.org.uk/photo/7571433

The OS 1:1250 marks it as a drinking fountain (D Fn).

*While I've only seen relict used in the sense of a widow or widower, I quite like it in an architectural context to mean a vestige or vestigial.

Not sure what it stands for yet, but found another in the wall at Walker Park near the lighthouse.

Whereabouts?

The second, in the vestigial wing of Viewbank House at the International School, is from 62/64 Shiprow, cleared 1876 for Trinity Congregational Church. It may betoken John Stewart & Christen Erskine in 1692, but the 1633 sill of the houssing beckons back further (as may the tusks of the port, r.)

The first is on Flourmill Lane, hailing from atop the pend/yett to Galen's, later Shepherd's Court, 18, renumbered 21 Guestrow, the home of advocate Androw Thomsone & Agnes Divie in 1673. This house and its drum tower were swept up in the clearances of 1930, pend and panel alone surviving.

That's an amazing haul!

Found it! i.rcahms.gov.uk/canmore-pdf/...

The only example that comes to mind in Aberdeen is Holburn Mansions, four tenements at 17/39 Holburn Street. The name persists on the transom of the corner building.

Spotted today round back, this skewputt betokens Andrew Affleck, namesake of nearby Affleck Street, sometime convener of the trades & another deacon of the Shoemakers.

Early plans don't show a house here so I'm keeping an open mind on the stones' provenance.