Tong shan xian cheng shi tu 銅山縣城市圖 

 - o.O.  1934  1934 
<br/><br/>Massstab 1:7500; mit ausführlicher Legende 
<br/><br/><br/>Karte 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Maps -- China -- Jiangsu -- Tongshan -- Republican Era