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IMG_20121122_101108.jpg SpiralsThumbnailsspiral2c for sheetwallSpiralsThumbnailsspiral2c for sheetwallSpiralsThumbnailsspiral2c for sheetwallSpiralsThumbnailsspiral2c for sheetwallSpiralsThumbnailsspiral2c for sheetwallSpiralsThumbnailsspiral2c for sheetwallSpiralsThumbnailsspiral2c for sheetwall
Currently my only Mulnir.

OK, so not Celtic at all, but might might argue that the Vikings "stole" the art of knotwork from the Celts in a way.
Information
EXIF Metadata
ASUS Transformer TF101
Make
ASUS
Model
Transformer TF101
DateTimeOriginal
2012:11:22 10:11:07
ApertureFNumber
f/2.4