The knowledge we have today concerning the Viking weapons are mostly based on archaeological finds and also on Norse documents that were recorded in the 13Th century.
According to historians, Viking were all required to carry weapons, the quality of these weapons would clearly identify the social status of each warrior. Vikings were known to use single handed double edge swords but they were also experts at using axes as main battle weapons.
History report that the “Huscarls” the elite bodyguards of the King Cnut were armed with huge two-handed axes which were feared and known to be able to split shields or metal helmets with ease.
Viking sword are some sort of mix between the roman spatha and a classical knight sword. All of their blades were double edged with a great variation of pommel and guard.
According to my research, here is a good source for Viking swords. There you will find a great collection of battle-ready Viking swords replica and even some models for re-enactors. Each model is unique and made of high carbon steel. Those are perfect for the serious sword collector.