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| Image Name | Width x Height | Size | 
|---|---|---|
| SIA3530.jpg | 640 x 487 | 64K | 
| SIA3530.jpg | 1200 x 913 | 164K | 
| SIA3530.jpg | 4945 x 3760 | 1M | 
Caption
This is a modified version of E.G. Squire's survey plate. In order to better show the features it has been colorized and a distance marker has been added.