Archive of the former Yahoo!Groups mailing list: Mellotronists

I was listening to Moving Waves yesterday for the first time in ages and
I noticed that Thijs van Leer used Mellotron strings in quite a few
songs as well as what sounded like to me trumpets in a section of
Eruption.Am I correct?I looked on Andy's page and he didn't mention
Focus.Did Thijs own one or borrow from a studio?
Pete