Rupesinghe, Harsha F. <br/><br/>
The Machine Postmarks Of Sri Lanka 

 - Nugegoda:  Author;  2018. 
 - 166 p.:  ill;  25 cm 
<br/><br/><label>ISBN: </label>9789553899705 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Postage stamps
<br/><br/><label>Dewey Class. No.: </label>769.56  / Rup