King sized mattress

King sized (approx 145x200) mattress to pass on. The matress may not be the youngest and as you can see has some stains (more from age, as I cannot recall anything ever causing stains as such on it) however it was quite expensive (about 1k at the time) at the time and it is actually still in great condition and very comfy. Its a spring mattress, no memory foam at all, as older. It is still straight without any sagging middle that cheaper mattresses may have with some age. It served me greatly and was the best mattress I ever had but want a smaller bed so need to pass it on. It is a strictly non smoking mattress and was always aired between bedding changes. Please for collection only. Thank you.