It would be one of her most sought after and admired images. Watanabe continued to publish her prints, including republishing some designs through 1939. Her published prints are consistently professional and always well printed. East Gate, Seoul, by Moonlight' was issued in an edition of only 30 and has become quite scarce today. The deep, rich blue in this print can be found in seven other print designs and represents, in only their inaugural effort, a particular achievement of the Keith-Watanabe collaboration.
Impressions vary from more somber, darker blue skies to lighter skies representing early evening.
In some impressions the grass on the wall at the lower right of the gate is a strong green. Sprinkled mica was also used in the eaves of the main roof. It is a print of stillness and timelessness, one of the early masterpieces of 'shin hanga' by a western artist. She produced etchings as early as 1924 and as late as 1938. It is signed in pencil in the lower right margin.