I believe the darker one is a painted post was patch, and the lighter purple one is obviously an original war time patch. The certificates are not in the best shape but frame-able. The 6th MG Battalion certificate is as rare as they come.
There are not always out there to get. Anyway what you see is what you get.
The wooden case is includes and the certificates with be mailed in a durable plastic sleeve. Please look at the pictures and ask questions. The item "USMC WW1 6th MG Battalion Patch and Medal Grouping with Certificates rare" is in sale since Thursday, December 21, 2017. This item is in the category "Collectibles\Militaria\WW I (1914-18)\Original Period Items\United States\Medals, Pins & Ribbons".The seller is "1hardcorps6" and is located in APO, Armed Forces Europe, The Middle East, & . This item can be shipped to United States.