Mid-century sgraffito and Klinker vases can be extremely hard to identify. If an item is not recognisably marked by stamps or incisions at the bottom and does not carry a brand label, it can be identified through parallel attestations that do carry a manufacture stamp or label. Known manufactures – other than the ones listed and named here below – are a.o.  Akru-Krupp, Wekara, Speier, Josef Duck (JD) Decora, Hükli, ...