Note: unlike the previous updates, it appears the above MA items will require making actual Legacy discoveries in order to unlock their recipes for transmutation. The quest to unlock the appropriate Legacy theme is
Legacy TH3. Precise Artillery Calculator -- it will then become selectable under the Book of Wisdom's Legacy theme section.
Using your Book of Wisdom's clock-like discovery section for Legacies, here is which discovery unlocks which recipe (with the location in parentheses):
Top / 12:00 -> Noble Metal Paneling recipe (Lima North)
Upper Right / 2:00 -> Gold brooch (Northwest Genoa)
Lower Right / 4:00 -> Sextant (Eastern Mt. Emei)
Bottom / 6:00 -> Silver ring (Edo)
Lower Left / 8:00 -> Aztec calendar (Edinburgh)
Upper Left / 10:00 -> Oak Plating (Frankfurt)
Center -> Noble Wooden Paneling (West Athens)
This 'discovery->recipe unlocked' condition seems to apply only to mini-update Legacy additions and not main chapter Legacy updates like the future Chapter 2: Rhodes and Ephesos. Cheers.
Source: gvo.gamedb.info/wiki/?Quest%2FAdventure%2FLegacy (Calculator sub-section)
Extra note: for those who wish to complete this MA (or indeed just find all the Legacy discoveries for fun), be advised that the lower right / 4:00 position discovery has a hidden requirement before it can be found.
I am told by players wiser than me that you must have discovered Leshan Giant Buddha from the [DBLNK:99997220] quest; if you do not have it in your discovery list then its slot will be darkened/blacked out when you're combining clues and it can NEVER be obtained until you complete that discovery quest.
Most likely this applies to any Legacy themes involving an inland discovery; however, the Calculators Legacy theme is unique as every discovery unlocks a special recipe for transmutation alchemy. I wonder if port permits are also a hidden requirement...?
Well, you are thus warned. Cheers!