Large Viking Ship Oseberg Button - Pewter 21mm Large Viking Ship Oseberg Button - Solid Pewter. Shank back sewn on. 21mm or 27/32" size. Large Viking Ship Oseberg Button - Solid Pewter. Shank back sewn on. 21mm or 27/32" size. Great for Viking, Renaissance, Elizabethan, Medieval or modern impression. Perfect for jackets, shirts and sweaters. Great for Medieval, Viking, Norseman, Saxon, Anglo, Norman, or Renaissance impression! Excellent for Renaissance, Elizabethan, Medieval or Cavalier Festival