https://travelsketch.blogspot.com/2010/06/st-mary-axe-gherkin-and-st-andrew.html
Travels with a Sketchbook in...: St Mary Axe: The Gherkin and St Andrew Undershaft
When I travel, I sketch. When I sketch on my travels I record it here. Plus information about places I visit and links for those who want to know more
travels with a sketchbook
https://digital.library.illinois.edu/items/a6f46000-73cd-0134-1deb-0050569601ca-d
Undershaft: Act III, Scene II | Digital Collections at the University of Illinois at...
act iiidigital collections
https://digital.library.illinois.edu/items/542aec60-73cd-0134-1deb-0050569601ca-f
Undershaft: Act I | Digital Collections at the University of Illinois at Urbana-Champaign Library
university of illinois