SWITZERLAND.  Post-, Telegraphen- und Telephonverwaltung <br/><br/>
Sustenstrasse 

 -  Bern  PTT  1948 
 - 77p., 50 plates (4 col., 2 fold.), illus., map (in pocket) 
 - [Table] .
<br/><br/> In German 
<br/><br/><label>Dewey Class. No.: </label>223.2