I used to have ,as a child, a large-ish collection of Matchbox toys 1950's onwards, now all dispersed via the attentions of the numerous offspring of brothers and sisters, who took them into their care!
So, entirely Dinky/Matchbox-less at the moment, since I now have a new grandchild with a car-mad father the acquisition of your collection is of great interest. Call me on 01904 432175 to discuss terms.
Cheers,