Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 143,009 pages of information and 229,287 images on early companies, their products and the people who designed and built them.
Ossa motorcycles were manufactured in Spain from 1949-1985 in Barcelona, by Manuel Giro and his family.
Ossa's were somewhat unknown in many parts in the 1970s, and are less-known today. Since it has been 19 years since a machine came off the assembly-line, parts, and support can be difficult to find.
 Ossa Planet web site