Everything is included with our coin doors - two coin mechs, and I also include the barrel lock and key with them at no cost. I checked the coin door, and it doesn't show a manufacturer stamp or label anywhere. (Sorry!) I've reached out to my suppliers, and can update if they're able to provide more information.
If you have any other questions, please let me know!
Thanks.
Rick
(And special thanks to Haruman, who pointed me to the thread!)