Vintage BLAU locking gas cap 60mm

Original BLAU locking gas cap in very good condition. The gas cap is a bit dirty from storage. It comes with 2 keys, box and instructions. The diameter is 6 cm. It was made in Germany in the 60ies. The rear is stamped with “BLAU ohne Lüftung”. The cap can be used e.g. for VW Beetle 1968-1969 to keep your gas save. The last pictures shows also an original VW Beetle 1969 fuel cap which is not included but has the same size.