All images are processed with a sigmoidal contrast filter (with ImageMagick), then sent through the GNU zebra barcode recognition system.
images/1795_Silver_Dollar_3_Leaves_Flowing_Hair_PCGS_VF30.jpg
155315 bytes

1795_Silver_Dollar_3_Leaves_Flowing_Hair_PCGS_VF30.jpg
images/44fb_1.JPG
31712 bytes

44fb_1.JPG
images/79a9_1_b.JPG
23399 bytes

79a9_1_b.JPG
images/ab26_1.JPG
26301 bytes

ab26_1.JPG
images/found_1.JPG
40110 bytes

found_1.JPG
images/found_2.jpg
41931 bytes

found_2.jpg
images/found_ngc_3.jpg
328070 bytes

found_ngc_3.jpg
images/notfound2.jpg
17587 bytes

notfound2.jpg
images/notfound_1.JPG
24921 bytes

notfound_1.JPG

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