Often mistaken for Christensen, these German Machine made Striped Opaque are more difficult to find, especially with a coloured base glass. To find a mint one is quite rare. I collect these types along with Galen Wilcox who has taught me a great deal about German machine made marbles as well as christensen. Many of these strangely are found in Canada This particular one hails from London, Ontario from the former collection of Perry MacDonald One oval bubble pop, asmade light creases. Surface is wet mint otherwise