This listing is for the Vickers Microplan 10X Microscope. The unit is in full working condition and is ready for immediate use. This is an objective lens—part of a microscope optical system—rather than an entire microscope unit. The specific lens in question is marked "Vickers England MICROPLAN 10/0.25 + PH.1", indicating a 10× magnification and a numerical aperture (NA) of 0.25. The "PH.1" denotes that it includes phase-contrast capabilities. Typical length around 37–39 mm, and weight in the range of 58–63 g. These objectives, with their phase-contrast capability, were designed to be used with microscopes that support such optical techniques. This objective would typically fit an RMS-threaded turret, common in Vickers, Cooke‑Baker, or similar stands. The phase ring (PH.1) allows enhanced imaging of transparent specimens, by shifting phase differences into contrast—ideal for biology or unstained sample observation.