That's not completely surprising. As I understand it, the world of double bass "brands" is a bit weird. For instance, I own a "Calin Wultur" bass made in Romania, possibly down the street from Gliga, but as was explained to me, this is a line of basses that enter the US through a single importer before ending up in bass shops that set prices at their own discretion. There are certain names of European student basses, where all that's known is an approximate region where they were made. Many "brands" of those basses turn out to be labels attached by the importer, sometimes even by just one particular shop.Weird that when I follow the link to the Gliga home web site there are no descriptions of models or pricing of their basses available there. Only real info is at www.violinslover.com
I think that especially as a bass ages, the importance of the brand begins to recede, and other issues take center stage such as tone and general state of repair.