K&F Concept M42 to M4/3 Lens Mount Adapter, for M42 Screw Mount Lens to Compatible with Micro 4/3 Four Thirds MFT Mount Cameras: Amazon.co.uk: Electronics & Photo
K&F Concept M42 Lenses to M43 MFT Lens Mount Adapter
Urth M39 to Micro Four Thirds Lens Mount Adapter | Urth UK