Manfred Mann's "Sticks and Stones" and "Hubble Bubble (Toil and Trouble)"

Recently, Reelin' in the Years uploaded a video in which Manfred Mann (the band) performs "Sticks and Stones" and "Hubble Bubble (Toil and Trouble)."  Manfred Mann (the man) is playing an early model Hohner Pianet:

The date is given simply as 1964, but a banner in the video says, "New Musical Express Poll Winners Concert," which, according to numerous internet sources, occurred on 26 April 1964.

I closely examined the woodgrain of the Pianet and discovered that it's the same instrument seen in this picture dated 10 August 1964:

[source]

This is the instrument that, if my analysis is correct, Mann had modified so that he could adjust the volume with a Vox pedal instead of the knee-control lever that the Pianet came with.