These are 73-74 center brace, along with left and right support brackets. Also pictured is a era correct hood latch. This one is designed for external release. My research suggested that I might be able to modify my internal release system to accommodate the 73-74 center brace. Once I started the mock up process I discovered that to be incorrect.
These look crusty, but are in excellent condition considering their age. They will make a trip to the bead blasting cabinet before receiving a fresh coat of satin black.