The "6971"version of the Albion is an overdrive based on the custom Hiwatts used by Page live on stage from July '69 through the end of touring in November 1971, hence the name.
Like the Super Lead Albion, the 6971 uses all JFET gain stages designed around the amplifier, and also include the unique tonestack. You will also have superior gain control with the pre-gain and drive controls.
Like all of my work, the circuit is handwired inside a 125B sized enclosure with quality parts. Price is $175