Oriental Advertising Agency. Advertising Hoardings. Central District 1. Szechuen Road No.160. 1914. Source: SMA (SMC), U1-14-3258 (2351-2355).

Letter from Engineer & Surveyor to Oriental Advertising Company Limited. Shanghai, February 7, 1914. Source: SMA (SMC), U1-14-3258 (2352).

Engineer & Surveyor requests information as to the exact positions and in which it is propose to erect Oriental Advertising Agency's hoardings and their approximate size.

Letter from Oriental Advertising Company to Public Works Department. Shanghai, February 7, 1914. Source: SMA (SMC), U1-14-3258 (2353-1354).  

Oriental Advertising Company send a sketch showing the exact position where Hoardings are wanted, insisting on the fact it is only wanted to strengthen existing Hoardings not to build new ones.