Yep, that is the same large bin for the rear of the T-16. Someone replaced your center hasp on each lid but everything else looks the same. The x-crimp is still also on your bin's back panel but looks more subdued than the new ones probably due to the paint compared to the bare shiny metal.
Any other mystery bins in your yard or garage? Might save me having to make something in the future if you don't need it