These racks were manufactured by Amco who supplied many period accessories to BMC, British Leyland for MGTD vehicle models. These premium quality USA made frame components are pre-owned, but show only minor signs of use, wear and age (see PICs).
The last PIC is courtesy of the Sports and Classics website and shows how the frame mounts are used. His mounting frame set was discovered at an estate sale where many collectible vintage automotive parts were offered. The item "Vintage MG TD AMCO 5301 Chrome Folding Luggage Rack Frame Mounts with Cap Nuts" is in sale since Tuesday, September 7, 2021. This item is in the category "eBay Motors\Parts & Accessories\Vintage Car & Truck Parts\Accessories". The seller is "supersurplusoutlet" and is located in Pahrump, Nevada.
This item can be shipped worldwide.