One of the rarest and best variant of this tube. The codes are 7L3 Δ8L which means it is made in Holland in Heerlen factory year 1958. Last and the best version with D getter and pinched waist glass. It is brand new, unused, tested in phono preamp for 2 hours and sounds incredible without any mycrophonics. Original packaging included as seen on the picture, box is in fairly good state considering the age.