Commissioner of Revenue to Commissioner of Public Works. "Electric Sky-Signs". Shanghai, November 21, 1930. Source: SMA (SMC), U1-14-3262 (0532).

I shall be obliged if you will kindly let me know your permit records the taxable area of the following electric sky-signs, and also the name and address of the parties responsible for payment of Special Advertisement Rate thereon: 

1. Transmutograph: Corner of Bubbling Well and Seymour Roads  
2. Electric Sign on roof of New World (Coney Island) Building 
3. Shanghai Power Co sign on roof of Capitol Building 
4. One Paint-Sign on Capitol Building 

Commissioner of Public Works to Commissioner of Revenue from. "Electric Sky-Signs". Shanghai, November 28, 1930. Source: SMA (SMC), U1-14-3262 (0534). 

With reference to your letter of the 21th instant, the following are the areas of the signs and the names of the applicants for the permits for the erection of same. The latter will of course be able to give you information as to the parties responsible for payment of the Special Advertisement Rate. (...) I am unable to locate the "Paint" Sign on the Capitol Building.