EMPI Sprintstar Wheels were introduced in the late '60's.
They came in VW Wide 5 & 4 Lug Bolt Pattern, in a variety of widths & offsets from EMPI.
Most were stamped: Lemmertz ... EMPI ...Made in Western Germany ... ET ... Rim Size & Width.
They came painted or chrome.
Here is a 1970 EMPI Catalog Ad.
Here is a link to a Samba post that is dedicated to Sprinstar wheels