The Chattanooga History Center made available a large bound volume of plat maps dated 1928. This type of book was meant to be updated regularly via subscription service, so pages inside include many carefully cut & pasted overlaid information updates.
This large book weighs over 15 lbs and measures 18” wide and 23.5” tall.
There are double-wide linen-backed pages of plats plus indexes. All are bound together with fine-threaded brass screws.
In order to digitize the pages, I disassembled the book and scanned each page in halves - requiring 4 scans per plat.
These were reassembled in Photoshop, exported by page and then processed in Deep Zoom Composer.
There are 40 pages featured.
* It's likely this book has been updated well into the 1930s but the content is not dated. Also, it's unclear if all pages were updated or just some.
Toggle between The major index maps by selecting NW, NE, SW, SE.
Select a page in the index by clicking on the numbered area (tap twice on mobile).
On mobile touch screens, you can easily rotate the view of the maps in the zoom pane.