|Note_en= stand for first half of '20s. From an advertising bookmark for the [[A.R.A.|A.R.A. 4]] model. Contributed from an author requiring to be anonymous. Published under his permission. | |Note_en= stand for first half of '20s. From an advertising bookmark for the [[A.R.A.|A.R.A. 4]] model. Contributed from an author requiring to be anonymous. Published under his permission. |