Posted by Gary Muckle
https://forum.cartridgecollectors.org/t/an-interesting-peters-shotshell/7334/3
There is also an image of a sectioned Peters "Spreader" shell

[Linked Image from photos.smugmug.com]

"Christie Method of Loading Short Range Shot Shells"
UMC Company's new short range entry on the market in 1907 was titled "UMC SCATTER LOAD" and was followed by "SHORT RANGE" using the Christie design. The Christie design creates layers of shot separated by card wads. It was a simple adaptation of available materials and popular and effective and still used by hand loaders today. Lewis D. Christie of Bridgeport, Conn. is credited with the design which was used by UMC beginning about 1907 as a short range load. Western Cartridge Company later used this technique calling them "Thicket" loads.

Christie, as assignor to Union Metallic Cartridge Co., received patent No. 873.346 on December 10, 1907 for "A scatter load for shot cartridges comprising a shot charge divided into a plurality of sections separated by wads, top and bottom wads and a covering of light paper enclosing the charge and secured in place independently of the cartridge shell."
This technique reportedly solved the problem of slow loading each shot compartment of wad and shot. This patent of December 10, 1907 was adopted by UMC.

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