The 'E' Club is rare, and desirable, (the two don't always go together), the only Club with the shorter cylinder, and with the benefit of the beautifully machined cocking lever catch, and flush with the cylinder, anodised trigger block.
Condition is everything, but with most blue an easy £300, maybe £400 just depending how good and how 'readable' is the etching.
Put it into perspective, a nasty Spanish made BSA Lightning XL in walnut is now £365.
Which would you rather have?