Installation of the two extra extension lines at the Headquarters of the Cal. Fire Brigade. 
 5F-18/40 

 -  1940 
 - 06 p;  H-35 cm; W-22 cm 
<br/><br/> সচিবালয় রেকর্ডরুম সংগ্রহ (প্রথম পর্যায়) <br/><br/> 
<br/><br/><label>Subjects--Topical Terms: </label><br/>extension