Ryder 40, Wood 36 and some others ... Público Deposited
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From: "Byron" <bkw11@psu.edu>
Subject: Re: Ryder 40, Wood 36 and some others ...
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I'm still trying to figure out why you think the Jozapaitis 56-n is overstr=
uck on a French Sol. As far as I can tell the only thing they really have i=
n common is weight, and the 56-n is a grain or so heavier. And the XRF stat=
istical minutia apparently doesn't prove anything, in fact it seems to be q=
uite off comparing the two.
Figures often beguile me, particularly when I have the arranging of them my=
self; in which case the remark attributed to Disraeli would often apply wit=
h justice and force: "There are three kinds of lies: lies, damned lies and =
statistics."
- Autobiography of Mark Twain
As for the dead horse, may God have mercy on his soul!
Byron
=20=20
--- In colonial-coins@yahoogroups.com, "colonialjohn" <johnmenc@...> wrote:
>
> Finally got to do some XRF assays (initial analysis) on some coins for th=
e upcoming Forgotten Coins Book. Some comments:
>=20
>=20
> 1. Canadian Blackmsith Wood 36: Rarity 8? (Two Known?) The obverse head h=
as the same general appearance as Wood 34 & Wood 35 with the infamous retro=
grade date reading 1471 which was doubtless intended for 1741. The William =
Anton Collection houses this variety as well as the Bank of Canada Money Mu=
seum via W. Baker?. With this type of retrograde date it appears to be Brit=
ish than Canadian but this has changed from my C4 Paper. Purchased actually=
from Cobwright in England for $600. An incredible coin and I have only tra=
ced two of this AK-Plated coin. As with most Blackmsiths of Wood 34-46 of a=
"BASTARD" type composition with this example composed of (12) different me=
tals and appears to be a low tin (4.55%) bronze (Cu/Sn) cast (Pb: 8.88 & 15=
.2%).
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> 2. George II Counterfeit 1/2d's. Most contain high bismuth relecting Corn=
ish Copper. At the time (1730-1750'ish) the Cornish Copper mines were domin=
ant with the Swansea Copper mines coming around in the 1780/1790's. The ana=
lysis confirmed this copper source for all types analyzed being Cornwall.
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> 3. Ryder 40: Confirmed as struck with 18thC copper. Jeff Rock melting dil=
emma? - hopefully we plan to do SEM/EDS comparions on these (5) coins: Ryde=
r 40, a 1770 Cobwright pouch example, Vermont Ryder 5 Cast, Ryder 25 and a =
V.13-88CT Machin Mills piece. See what happens. Microstructure (surface mag=
nification), inorganic metal and organic profiles.
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> 4. GIII CC's - nothing special - same old 97-98% copper. Few impurities u=
nlike American 18thC State Coppers.
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> 5. Ryder 5 - The lead value is of this coin was 1.42%. It does require mo=
re analysis. Cast bronze lead specimens have lead values which are very var=
iable.
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> Hopefully some INTIAL signatures can be retrieved from this group when co=
mparing Machins to English imports and seeing if Ryder 40 is a melt down jo=
b. On this point I think Jeff's arguments will remain unchallenged as there=
are no references or data groups to confirm or deny this point. We can onl=
y compare Ryder 40 to these (4) other pieces and discuss the findings - CAR=
EFULLY.
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> In all (25) coins were analyzed including a 1773 GIII Baby Face.
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> Byron - its not dead ... unfortunately we have not even scratched the sur=
face ...
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> JPL
> - 2012-08-07
- 1
