The extended length is consistant with just about all quill stems. Pictures not needed.
Having had Asian and European bikes as well as TTT, Cin., Niito, SR all stems have minimal range. Bikes weather they be tourers or road race geometry have always been designed with having the bars equal, actually an inch or lower than the seat.
Unrealistic for many off us. This approach to fitting, this theme prevailed for many years. As we've "gottten wise" and as the old, not so practical ways have been reconsidered over the past few years, most of the riding public that prefers a more upright possition buys bikes built in a shape providing a higher front than old designs had. Riders don't stop riding as they age as much as they used to.
If your stem(s) meas. 5.5 inches tall (probably do) you would be better off by using a Hi-Rise. Many are only 5.5" with an upswept angle. Your bike already has such an angle so a 7 or 8" is in order. One and a half or so inches gain of effective height is alot. You will appreciate the difference. www.universlcycles.com
click the search box type Kalloy and the stems will come-up, go to "Riser Quill", you'll see 'em. Item #24481-56561 . Note they've black ones too. The other meas. is reach which is not important in your case.
Having done this improvement a number of times has rendered practically unrideable bikes enjoyable for myself and others. English bikes use standard 1" (25.4) insertion size. It fits "loose" but that wedge locks the whole affair in place when it's drawn-up by the bolt as you know.
Again, your bike, all bikes have very little adjustability (not enough) in stem height.