Triple curtain file cabinet

Very beautiful burwood brand triple curtain binder in excellent general and working condition. I think it must be beech but I don't know anything about it. The top is in imitation leather with aluminum edging finish (original and complete furniture) in its original state! No marks of blows or other accidents. It has 6 original keys and 20 shelves. This piece of furniture has been used with care since its acquisition in the early 70s (i think... After searching on the internet) please: even if you are not interested in it and you know this product, I would really be very grateful to you for providing information (subject, period and origin perhaps). Make me a reasonable offer of course.

Ref. : JGJUU2AG