If a Radiola variant can command such money, then you can see how rare that variant is, while the common European versions are unusual, to rare. this variant is almost never seen. If you have one and are not a dedicated collector, now is the time to sell. its a bit of an oddity, it will never be super valuable because there's a few variants. but definitely would be prized to a hardcore collector. I would expect anywhere between £30-£80 on a good day.