Set contains 3 blue filters, all with E39 thread. Will fit many Leica lenses, example on last picture shows filter mounted on Elmar 2,8 5cm. ATTENTION: lens is NOT part of the offer and is for demonstration purposes only. Remember: you are bidding on filters only! Filters are in almost new condition, two of them bare engravings B3 and B6, possibly added later. Shipping from Vienna with Austrian Post, registered and insured. This is private sale, no warranty and no return.