For the rarer variants such as the double helix or the registered or patented caplifters it becomes a
matter of negotiation and need. Though rare ,and much more collectible than a rare maker's name,
they still lack the beauty or mechanical character which tend to attract collectors. (This of course is
code for don't ask me to pay too much!)
The unregistered and unpatented variations are a matter of taste. Many minor manufacturing features
which I have distinguished above add little if any value. I'm probably alone in caring whether a ferrule
is nickel plated brass or steel. However an attractive Adelaide with a decorative shank will often sell
between $40 and $80.
My observation of other collections suggests that ,outside Australia and New Zealand, Adelaides are
largely absent. A few international collectors show an interest in the UK registered and patented
Adelaides. I have been pleased to acquire several from Frank Ellis' collection. Interest in the different
markings is low to non-existent. In 2009 the ICCA conducted a survey of members to assess their
holdings of UK registrations and patents. No Adelaides were included in the survey, presumably a
reflection of the lack of interest. I would be pleased to hear from other collectors which Adelaides they
Because of the simplicity and generally low values of Adelaides, there is not a great problem with
repairs, fakes and “marriages”. The most common problem is a replacement spike as they just screw in
and are difficult to pick if attached to the correctly matching corkscrew. I think it would be difficult to
replace a ferrule or worm. I assume Figure 22 is a marriage with a German fly-nut frame but it is nicely
As well as any Adelaides not mentioned in this note, I need the following pieces mentioned in the note:
A) Ones I don't own
-double helix ( Figure 11)
-UK Reg 620370 (Berkeley snake tongue spike/caplifter. ( Figure 14)
-UK Reg 472939 (Shaw)
-Will & Fink (eg Screwbase Cbx202).
-Inlaid handle (See Figure 7)
B) Markings I don't own