All hallmarks and maker's marks are intact as follows: marked on the inside for Kultaseppa, Finland silver standard, 925, Town mark for Turku, and Z7 for 1977. Also marked with the maker's mark and Finland. The item "HUGE and RARE Vintage Pekka Piekainen Sterling Modernist Shield Ring size 5.5" is in sale since Thursday, April 11, 2019.This item is in the category "Jewelry & Watches\Vintage & Antique Jewelry\Vintage Ethnic/Regional/Tribal\Scandinavian". The seller is "lookattheprettykitty" and is located in Brooklyn, New York. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Iceland, Luxembourg, Macao, Viet nam, Uruguay, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Monaco, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion.