This is an example of Oceanik, and would have been produced 1900-1905. Contrary to some popular internet myths, Loetz vases are found with and without pontils, although if found with a pontil they are generally well worked and polished. Oceank is a decor with a direct relationship to Wellenoptisch. Oceanic has a different surface treatment, but same molded surface pattern.
Hope this helps.
Craig