Hi there,
I am now the proud owner of an Eriba Familia 1975 and really love it!! I haven't had my own caravan before, so I am very excited.
Today I gave it a thorough clean and being so overzealous in my cleaning, I broke the back window lock. Gutted! 
Does anyone know where I can get hold of another one and also perhaps a good source of spares? I'd lalso ike to replace the door hold and the bracket on one of the read lights is broken.
I guess after 41 years, the plastic starts to get brittle.
Anyway, looking forward to being part of the forum.
Best wishes,
Patty