I was thinking more of a number list for particular items, and which could be slotted into some of the "empty" sea space, assuming there wouldn't be too many, given the small amount of built-up land on this map.

And maybe some map labels for the headland, rocks in the sea, and suchlike. That long cliff-line is something that would be liable to attract a local name, for instance.

Looking interesting!

Labels are getting a bit lost currently though - and is there a reason why some are in the same fancy typeface as the title, while others are like the subtitle line?

OK. I think this might be what you're remembering: World Builder's Guidebook Templates, drawn by Walter E Starr.

They're in the old ProFantasy Map Library. Although this is still on the PF website, it's not easy to find, as there's no direct link to it from the site any longer. Luckily, there are links on some of the Forum topics, providing you can remember where to look...

Hope that solves the problem!

Monsen's right in that virtually everything that tries to equate the Forgotten Realms setting to anything genuinely geographic has been done by the fans only. Part of the problem is that the size of some of the continents were changed at different times, and as the setting developed through various novels written by different people at different times, there was never a single basis on which any of this was hung. It's extremely irritating!

Even the official TSR 1990 "Forgotten Realms Atlas" by the great Karen Wynn Fonstad shows nothing of any latitude and longitude lines, though she does demonstrate very clearly in that just how little of the planet had been even approximately mapped by that time.

The only thing I have come across is a mention on the Candlekeep.com site in their FAQs regarding a map in "Faiths & Avatars" (TSR, 1996) regarding where the equator is. I found that via this discussion post on the Forgotten Realms Wiki site, which mentions the same map shows the canonical lines of lat and long, though so far as I can tell, while there are some lines shown, none have labels attached.

As the medieval wall thickness point has come up a couple of times recently, it may be worth anyone interested reviewing the comments to this query posted on Worldbuilding Stack Exchange back in Dec 2016. The querent was fantasy mapping using CC3. There are some interesting notes there, though perhaps that of greatest relevance relates to an article, The Construction of Medieval and Tudor Houses in London (link is to the free PDF download of the article), which mentions, for instance, an early 13th century London regulation requiring house walls to be built from stone at least 3 feet thick. That not all were seems to have resulted in collapses, hence the regulation. It discusses other materials and construction methods too for the period from circa 1200 to circa 1600, so is worth reviewing.

Most of the other information readily available online relates to medieval castle walls, so is fairly useless for this kind of discussion, but if you dig around, you can find a few architectural and archaeological reports on individual medieval house buildings if sourcing more precise details for specific cases would be useful for your mapping.

As for the Hommlet D&D setting, the original T1 module makes the particular comment from the settlement's heyday (page 2): "Prosperity was great, for the lord of the district was mild and taxed but little. Trade was good, and the land was untroubled by war or outlaws or ravaging beasts." So, plenty of spare cash floating around, it would seem, at least when the original properties were built and enhanced, before disaster overtook things (it's a D&D module; what did you expect?!).