Poll
Question:
Which coin/s is/have been cleaned
Option 1: . addslashes($options[$i]) . "
votes: 1
Option 2: . addslashes($options[$i]) . "
votes: 2
Option 3: . addslashes($options[$i]) . "
votes: 5
Option 4: . addslashes($options[$i]) . "
votes: 1
Hi All,
I'm sure most of us would buy coins from eBay and make a decision to purchase based on the photo / scans attached.
Here are 2 scans of coins and I want you to judge them. I will post photos taken by the camera at around 6pm tonight.
(http://i1277.photobucket.com/albums/y484/Fr45h3R/skfE9F_zps10e80ea5.jpg)
(http://i1277.photobucket.com/albums/y484/Fr45h3R/skf1833_zps649b20b0.jpg)
If the colour in the pic's are any indication I recon they have both been cleaned
I don't think either of them are cleaned. But if I had to pick one it would be the 51PL.
I went with both being cleaned. This is mainly because there appears to be some inconsistent grime from the lettering and the large flat areas of the coins. This could be caused by something else or maybe I'm imagining things. Just my guess :-/
Quote from: 'b_j_w_79' pid='7470' dateline='1359333216'I went with both being cleaned. This is mainly because there appears to be some inconsistent grime from the lettering and the large flat areas of the coins. This could be caused by something else or maybe I'm imagining things. Just my guess :-/
I called them cleaned because of the mottled salmon/purple colouring, looks like these have been dipped in acid or the like.
They are both dull and lifeless and the lustre appears to have been eaten away on both coins
I think the 1943 will be fine but am not sure about the 1951. I hate seeing scans of coins and trying to grade/buy from them.
They both have that strange colour that comes from handling cleaned coins, to me.
If they haven't been cleaned they've been stored in PVC
and especially the bottom one
i say the bottom one has been cleaned , ( 1943 my birthday )
judging by the markings underneath australia .. ,, kel ,,
Hi Everyone, thanks for having a go.
Here is a picture of the 1951 Halfpenny
(http://i1277.photobucket.com/albums/y484/Fr45h3R/coins001_zps4f235090.jpg)
Here is a picture of the 1943 Halfpenny
(http://i1277.photobucket.com/albums/y484/Fr45h3R/coins002_zps17374146.jpg)
Would your answer have been the same if these photos were used ?
-rob
No ! the 51 looks shocking,the 43 looks quite nice.
I told ya I'm learning :blush2:
So let me guess, top are scans and the bottom are pic's..am I close :)
Quote from: 'ausjack' pid='7530' dateline='1359358433'I told ya I'm learning :blush2:
So let me guess, top are scans and the bottom are pic's..am I close :)
Yep the top images I did with my scanner, and bottom ones were under a light taken with a camera.
Don't be too disheartened, I wasn't the one who cleaned that coin, so i've bought that coin, off a photo that appeared better than it was.
It wasn't even a scan if i can recall it was just taken from a mile away with uniform lighting. It's the gamble we take on eBay.. To be honest, I still tread carefully around 'scanned' copper coins.
Thanks Fr, here's a link to a post of mine on ccf about lighting etc :) http://www.coincommunity.com/forum/topic.asp?TOPIC_ID=113539
Quote from: 'Fr45h3R' pid='7528' dateline='1359356310'Would your answer have been the same if these photos were used ?
-rob
Clearly not, the 51 is obviously cleaned. The 1943 isn't. I don't like grading from photos, but I hate grading from scans. They can hide so much.
I was actually hoping for my own education, that putting a few coins into the scanner that it would give some sort of guide on what to look for but there is nothing at all, even when the 2 coins were so different.
IMHO scanners take perfectly fine images for examining close detail but they are useless for grading coins from. I think there's two reasons for this. First, most of them seem to have some sort of rubbish dithering that just hides scuffs and bag marks. Second is that they are shocking at displaying lustre and hide the colour if a coin is lustrous. The coins you've posted here I believe are a great example of the failings in both areas.
Firstly, the lustre pattern on both scans looks perfectly normal for a toned coin, lighter areas (higher reflectivity) around the protected areas and devices. This is exactly how a coin tones, the high points and unprotected areas tone first and the "residual lustre" is in the protected areas. Which is exactly what your scans show.
Secondly, the 51PL clearly has cleaned abraded surfaces from your photos. It also has some shocking bag marks on the roo that are clearly visible. Look at the scan though, and the bag marks are barely visible. Look at the fields and yes there might be some discolouration there, but it could just be fluff on the scanner too. The scan has hidden the bag marks and the abraded surfaces.
Perhaps someone who has more experience that me at grading from scans would say the 51PL was definitely cleaned from the scan but I couldn't say for certain. Moral of the story is don't try to grade a coin from an image you do not understand and if in doubt don't buy the coin.