Where is the best place to sell some bird watching telescope's?

Hello

Where is the best place to sell some bird watching telescope's, my Mum and Dad were avid watchers and I have to sell 3 telescopes and 2 tripods.

I have a

Opticron piccolo, D=60mm W22X, D80mm W30X, it has an in-focus custom cover

Prisma Prismatic D=60mm, made in japan, has a tripod mount fitted

Bausch & Lomb Zoom Telescope, long eye relief, made in japan, fitted with a zip cover and a tripod mount.

A cherry tripod, made in japan

And finally a Vanguard VT-432 tripod, made in China

Any help would be gratefully appreciated.

thanks