ɐ sˈɜːveɪ wʌz kˈæɹid ˈaʊt ɪn tˈuː θˈaʊzənd twˈɛnti wˈʌn ˌɔn ˈɔːl nˈaɪnti sˈɪks wˈɪndoʊz ænd wˈɪndoʊ ˈoʊpənɪŋz æz pˈɑːɹt ʌv kˌɑːnsɚvˈeɪʃən wˈɜːk baɪ lˈɪndə kˈænən.
A survey was carried out in 2021 on all 96 windows and window openings as part of conservation work by Linda Cannon.