Internet References

http://www.cybermotorcycle.com/euro/brands/sertum.htm 

http://www.motomanuali.com/MANUALI&CATALOGHI/officina/SERTUM.htm

http://www.motortransfers.it/italiane/sertum.htm

http://www.oldmodels.it/ 

http://www.aave.it/ 

http://lesmotocyclettes.free.fr/moto/sertum.htm 

below the gallery of several the Sertum models as they appeared in the publicity... to notice that there are the prices in Liras..... when the Liras weighed how much a dollar!!!!!!