Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.
This image was taken from Flickr's The Commons. The uploading organization may have various reasons for determining that no known copyright restrictions exist, such as:
The copyright is in the public domain because it has expired;
The copyright was injected into the public domain for other reasons, such as failure to adhere to required formalities or conditions;
The institution owns the copyright but is not interested in exercising control; or
The institution has legal rights sufficient to authorize others to use the work without restrictions.
Please add additional copyright tags to this image if more specific information about copyright status can be determined. See Commons:Licensing for more information.
No known copyright restrictionsNo restrictionshttps://www.flickr.com/commons/usage/false
這幅圖片原始出處為Flickr的https://flickr.com/photos/126377022@N07/14801801473 ,作者為Internet Archive Book Images 。經機器人FlickreviewR在2015年10月25日審查後確定為採用No known copyright restrictions的協議授權使用。