Meaning of A1 Club Seal is explained HERE.
Japanese pronunciation of A1 CLUB is ei-wan ku-ra-bu.
Homophone Kanji-character for ei-wan ku-ra-bu is selected by Hiro, JA1HHF.
He selected Kanji-character carefully including profound meaning.
He said that CW enthusiasts gathered in our club have various talents on CW operation,
Someone runs Morsecode very fast by his sharp arm, and someone play Morsecode leisurely like a dancing spiral shell.