Japan: A sheet of older labels

Here is a full sheet of older labels from Japan. The sheet contains 25 airmail labels.

Year: 1960, Gummed. Günter Mair's catalogue no: - JPN-A-6b, rouletted, sheets of 25(5x5), lettering modified, "PAR AVION": 28mm, violet-grey-blue or dark violet-blue/white, 1*