Industrial newsletter. 

 - Port-of-Spain  1963 
<br/><br/> 1963-1964 (September missing from each of these.)  1966 - nos. 1, 2, 4  1969 - nos. 1-3  1970 - nos. 1-5, 7 
<br/><br/><label>Dewey Class. No.: </label>T761