Report about the Telephone Exchange and Wireless Station run by the Police Department.  
 File No. P4I-14 /1950 

 -  1950 
 - 21 p.  H-35 cm; W-22 cm. 
<br/><br/> সচিবালয় রেকর্ডরুম সংগ্রহ (প্রথম পর্যায়) <br/><br/> 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Report --Exchange