这个作品在美利坚合众国属于公有领域，因为它首次发布早于1929年1月1日，或于该日期之前在美国著作权局登记。 公有领域作品必须在美国以及来源国没有版权问题，才能上传至维基共享资源。如果此作品不是美国作品，这个文件必须要有一个额外的版权标记显示此文件在来源国的版权状态。 注意：此标签不应用于录音作品。PD-1923美国公有领域//commons.wikimedia.org/wiki/File:AlSmithWaves.jpg

User Pdn on it.wikipedia, who got it from en:Wikipedia where it was uploaded 15:57, 11 February 2004 by Infrogmation (talk) who in turn got it from loc.gov, which in turn got it from the Chicago Daily News Photo collection.

A previous upload was at it.wikipedia; description page is (was) here * 12:30, 1 nov 2005 [[:it:User:Pdn|Pdn]] 376×396 (46.744 byte) <span class="comment">(http://en.wikipedia.org/wiki/Image:AlSmithWaves.jpg)</span><br> Previously 15:57, 11 February 2004 en:Wikipedia Infrogmation 376×396 (46,744 bytes) (Alfred E. Smith waves, from loc.gov) }}

(Uploaded using CommonsHelper or PushForCommons archive copy at the Wayback Machine)