Developing Tanks

I have been selling off some of my darkroom kit which I haven't used in 30 years and will never use again.  But I couldn't find my film developing tanks: I knew I had a couple but just couldn't locate them.

Today, while moving about some of the remaining boxes in our loft, I discovered another hidden box - and there they were.  Only I discovered that I had three tanks - one for 35mm film, one for up to 6x6cm film, and one multi tank. Now I need to see if anyone is interested in buying them.