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Shell Pricing
These are a few notes from the Conch-L listserve on how the prices of shells are derived and affected over time

 

Notes by Wesley M. Thorsson
Editor of Internet Hawaiian Shell News

Note from the Conch-L listserve April 18, 2001

The current price of a shell is of considerable interest to dealers and buyers.

A number of factors influence prices, and should be taken into consideration.

  • Size: Each species has a range of sizes that usually form a bell shaped curve when number is plotted versus size. If you want a shell at either end of the size range, you should expect higher prices.

  • Rarity: Rarity varies with time. The first shell to be found of a species is very rare at that time. When an ideal location for the species is found, they may be locally common with lower prices. Some species experience great variations of populations. If the species is found in only a small area, this will effect the price greatly.

  • Location: Some species are found almost worldwide, others are found only in a small area (so far as is known for the species). Difficult to reach, small ranges (geographic and depth) will produce higher prices as they require much greater expense to obtain. Some species, though found in a very wide range (such as Pacific-wide) are rare in some areas (for instance, Cypraea annulus is not found in Hawaii to my knowledge and Cypraea moneta are fairly rare
    today). If you want a shell that is from an area where is rare, you should expect prices of a rare shell, and the data and its reliability determine the price.

  • Who collects the shells: Most bulk shells are collected by natives who earn only a few dollars a day so the prices are apt to be low. Some areas only have collectors who normally earn a good wage, and they aren't apt to sell low price shells.

  • Data: The data for shells collected and sold in bulk is apt to be poor to lacking in detail. Shells from very different habitats and areas are apt to be lumped together. Some may have magnificent data that is made up in mass and may be worthless for tying a location down further than to a country. If you expect good data, expect higher prices.

Prices change for a number of reasons.

 

Aloha from Wesley M. Thorsson
Editor of Internet Hawaiian Shell News, a monthly Internet Publication
122 Waialeale St, Honolulu, HI 96825-2020, U.S.A
http://home.att.net/~w.thorsson/

 


Date: Wed, 18 Apr 2001 00:14:22 -0400
Reply-To: Conchologists of America List

I was just leafing through an old shell price catalog published by Walter Webb, circa 1950. Since things are rather slow on Conch-L at the moment, I thought you might like a small sampling of his price listings. . . . . .

Cassis tenuis $2.50 (Cypraecassis tenuis)
Buccinum glaciale $ .50
Neptunea decemcostata $1.00
Murex adunca $1.00
Murex pecten $2.00
Murex plorator $1.00
Murex regius $1.00
Murex troscheli $2.50
Cassis plicata $2.50 (Cassis fimbriata)
Conus bullatus $5.00
Conus floccatus $12.00
Conus orbignyi $1.00
Conus gubernator $1.50
Conus sieboldi $1.50
Conus spectrum $1.00
Conus auratus $3.00
Voluta musica $2.50
Voluta brasiliana $3.00
Voluta musica $2.00
Voluta vexillum $3.00 (Harpulina arausiaca)
Voluta lyriaeformis $2.50
Cypraea decipiens $3.50
Cypraea tessellata $2.00 to $5.00
Cypraea ventriculus $1.50
Strombus galeatus $2.00
Megalatractus proboscidifera $5.00 to $10.00 (Syrinx aruanus)
Vasum cassidiformis $1.50
Xenophora pallidula $2.50

The following are listed as "Very Rare - P.O.R.":

Voluta virescens
Cypraea leucostoma (Cypraea teulerei)
Murex clavus (Pterynotus elongatus)
Halia priamus (Ampulla priamus)

How times change!

Paul M.


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