Here we have a rather nice vintage Prinz 300 35mm slide projector, complete with its ‘Exclusive to Dixons’ box, and instructions. The projector operates as soon as it is plugged in, generating a strong light - and a fair bit of heat too! The slide changer operates smoothly. The projector lens is easily removed too. I haven’t tested for focus as I don’t have any slides to test! There is a name and address written on the inside of the box.
eBay