"Duplicate Posts/threads are typically frowned on.Thread 'Who made this box?' https://www.garagejournal.com/forum/threads/who-made-this-box.544082/"
If you read the beginning of the post,
"Sorry for repeat posting - I decided to post it in Vintage Tool thread in case some members do not go to General Tool thread"...
The only PAR-X box I have ever seen is the three-drawer with drawer-wide bent lip handles, ostensibly made by MBC. There are a few examples on the PAR-X thread and a few examples and some discussion of PAR-X boxes on the Mega 'Toolboxes' thread down here on the Vintage Tools Discussion forum, which would be your best bet for toolbox audience. Some members, and some of them toolbox guys, never scan the forums for new threads, they only follow their Watched threads. I just link-bumped it for you.For some reason my mind keeps thinking of PAR X, but I am not sure
I think we got an answer!