These little tumblers or vases look like mid century modern German art pottery to me, but I'm not an expert on the vintage Germany marks, and I'm not even sure I have the mark right side up in the photos! Looks like a small logo stamp, and either 59 or a 65 to me. So I think these are probably mid-century vintage, as they look.
This is a set of six 3" tall vases or tumblers, brown with an orange-red X border design, clean white interiors. Nice chunky weight to them, and all in very good condition without damage or wear.