Installation of an electric Calling bell in the office of the D.I.G. of Police (I.B) at 7 Wise Ghat.  
 File No. P5E-5 /1949  

 -  1949 
 - 27 p.  H-35 cm; W-22 cm. 
<br/><br/> সচিবালয় রেকর্ডরুম সংগ্রহ (প্রথম পর্যায়) <br/><br/> 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Installation --Electric