https://www.peterloy.com/products/leitz-e39-polarising-filter/
Leitz E39 polarising filter - Peter Loy
(POOTR), chrome. Condition 4/D
polarising filterleitzpeterloy
https://procentre.co.uk/product/bw-58mm-circular-polarising-filter/
B+W 58mm Circular Polarising filter – Pro Centre London
Key Features Reduces reflections from a variety of surfaces Increases colour saturation and contrast Colour-neutral to the optimum extent Made in Germany
circular polarising filterb wprocentrelondon