I started copying the original layout for veroboard and gave up toward the end as it’s a cramped mess – this is a similar but more practical version.

The germanium John Hornby Skewes Zonk II is similar to a Fuzz Face but without the 100k feedback resistor, and note that the output cap is taken directly from the collector of Q2, and there’s a resistor in series with the cap to take a bit of edge off the output level.  There’s also a 680k resistor to help bias the base of Q1, probably due to the missing 100k feedback resistor.

It’s a clear departure from the original Zonk Machine, before the silicon model, which also has two transistors.  To make things even more confusing, a hybrid silicon germanium version was thrown in for good measure.

I’ve read that these were made by Sola Sound for JHS in approx 1966-67.    Check the thread on the D*A*M forum for photos, as this is slightly different from one of the schematics.

Also important to note that there were multiple versions, all called the Zonk II, but with very different circuits.  Check out Fuzzboxes.org as a reference to this.

JHS ZONK II – 0.15” VERO LAYOUT