Atlas/Thorn PP65 5ft 65W Popular pack fitting control gear (spot the error!)

here is the control gear of one of the previously uploaded NOS Atlas/Thorn Popular packs, and see if you can spot the error :) its quite interesting to see how far back this style of control-gear goes, both this style of starter and open-frame choke is something you would normally associate with later fixtures from the late 70's or early 80's, but the capacitor in the fixture is still a distinctly old school very long-large affair with exposed pin-connections, so its a curious transitional fixture in that regard besides the branding transition also :)