The 1843 book, The Closing Events of the Campaign in China by Granville Gower Loch, contains a detailed description of the tower as it existed in the early 1840s.
Buku tahun 1843, The Closing Events of Campaign in China oleh Granville Gower Loch, berisi deskripsi rinci tentang menara seperti yang ada pada awal 1840-an.