Wanted: Info on 2001 CofF $1 rotations

[Ozcoins]

Not saying its impossible, but they're a well-known error which is as actively sought as mules. Even finding a dozen with duplicates is going to be tough.

Update.
I found another one today - about 11 o'clock.
I think that makes 6 I have found, so halfway to a dozen....

[Unicorn]

Well done Oz! :yahoo:

Are they all different times? (Which ones are they?)

[Goldseeker]

thanks Kel Nevol OZ and Unicorn & here I was thinking that the hubby's 7óclock rotation from the Taylor's Lakes hotel pokies was up there with the mules!!
Good - cause I only charged him the face value for it too!! ha ha

thanks emu
that unc coins is very nice

I guess that ebay isn't always the best reference point for prices

What you doing in Taylors Lakes Hotel?   That used to be my territory.   Tell me, are all the ladies behind the coin counter small?

[Ozcoins]

Well done Oz! :yahoo:

Are they all different times? (Which ones are they?)

3 around 9 o'clock
2 around 3 o'clock
1 around 11 o'clock

However this is too small a sample to have any idea what is most common.

[Unicorn]

Cool, I think Goldie's post back on page 2 of this thread shows some very good insight into which are the rarer ones. (Considering he'd had 483 of them at that stage on which to base his thoughts).

Ít sounds like you're going quite well finding six so far.

I found my 7th last week. (Which is the 4th I've found since you started this thread). Will put up a pic when I list it. My first impression of it was 6 o'clock but still have to measure it.

That makes my total tally

3 x 9 o'clock
2 x 8 o'clock
1 x 3 o'clock
1 x 6? o'clock

PS: I've yet to find a wavy!

[keldaw]

you are not on your lonesome there uni  ..   ,, kel ,,

[Goldseeker]

Unicorn-One problem one has in collecting/finding the 2001 Upsets is to find a really good method of measuring the angle of upset.....good luck as it took me a long time to find a successful method.

[Ozcoins]

Something I do for a quick check, which I am pretty sure is more accurate than 'spin while holding with thumb and index finger', is to align my thumb nail against the side of the coin in line with the tip of the queens neck, then flip the coin over see where the edge of the thumbnail lines up.
Those that are looking for these coins, give that a try and let me know if it works for you.

[Fulvio]

align my thumb nail against the side of the coin in line with the tip of the queens neck, then flip the coin over see where the edge of the thumbnail lines up.

Hrm. That gives me an idea for a method that should combine the simplicity with the accuracy of Goldy's 2-cam setup.

A 2x2 or similar, sized so the coin is a tight fit. Alignment lines on both sides. Insert coin, flip, measure offset. Easy, cheap and accurate, no?

Off to the mad scientist lab to try it out... :dodgy:

[keldaw]

who is wanting to buy some of these    I wonder .

    ,, kel ,,

[JeffH]

I have just measured the ones I have here;
•146º (4.9 o'clock)
•231º (7.7 o'clock)
•277.5º (9.25 o'clock)

I have sold several in the past but didn't keep a record of amount of upset.

To measure the upset my procedure is;
•Put coin in a 1½x½ holder
•scan both sides with holder aligned exactly to edge of scanner
•rotate reverse scan to get "1901   2001" exactly horizontal and note number of degrees required
•add a line to obverse to show what should be vertical centre line. I scanned several 50¢ coins to determine where this line should be -easy to line up with the centres of the "corners" with these
•rotate obverse scan same amount as noted for reverse (but opposite direction on screen). This aligns the obverse with the reverse.
•now rotate the obverse scan until I get the centre line exactly vertical. The amount of rotation required is the upset of the coin. Divide degrees rotation by 30 and that is the clock position.
  I guess the rotation and, if it not right, undo the rotation and add or subtract a degree or two -repeating as necessary- until I get it right.

Any half reasonable image processing software will allow you to do this. I mostly use the old Micrografx Picture Publisher which allows rotation to be nominated to, at least, a precision of 0.1º -that is a smaller increment than my eyes can accurately assess on my screen. Micrografx was bought out by Corel in 2001 and they quietly dropped support a few years later. I have version 5 (simple to use) and version 8 (many more features but not as quick and easy to use). I would be interested to acquire a copy of V10 (the last one), if anyone has it -just to compare with V8.