Selling general items at auction

It's worth checking out a few auctioneers - we go to auctions often (or did) and some auction houses seem to sell mainly antiques and some sell a lot more general/vintage stuff as well as antiques.
It's also worth checking whether you will be charged if it doesn't sell. Some auctioneers will just put it into the next sale if you want them to, some will charge for each sale attempt.

I do all mine on eBay or local selling sites much easier and less to pay out

You will pay a 20% commission to the auction house.
Could you sell via Gumtree, or Facebook?

Find your nearest auctioneers (a quick Google search should find them) given a call and ask for their advice.

They should be able to tell you wether the items should go into a "general" sale, antiques & collectables.

Good luck!