The overlays that highlight 17th century London features are approximate and derived from Wenceslaus Hollar’s maps:
Open location in Google Maps: 51.515750, -0.095788
Goldsmith's Hall, Foster Lane is in the lower right corner of this segment of the Rocque 1746 map.
The Worshipful Company of Goldsmiths and Goldsmiths' Hall
Goldsmith's Hall is open for tours four times a year. Today, 2020, they are selling tickets for the 2021 tours ... so plan ahead:
Chart showing the number of references in each month of the diary’s entries.