Shetland knife
Fragment of a Shetland knife of spherulitic felsite, from West Burrafirth, Shetland
Shetland knife
Flat knife of porphyrite stone, from Modesty, Sandsting, Shetland
Shetland knife
Shetland knife of bluish-green stone, from Modesty, Sandsting, Shetland
Shetland knife
Portion of a flat knife from Modesty, Sandsting, Shetland
Shetland knife
Portion of a knife of porphyry, from Modesty, Sandsting, Shetland
Shetland knife
Portion of a Shetland knife of polished stone, from Kirkure, Esha Ness, Shetland