Mike, does the car have AC? If not, this is what you are looking for. For 1972, the lid will be black instead of chrome. The one pictured is a 1971 lid.
There is one on ebay at the moment:
https://www.ebay.com/itm/253316397588
If the car does have AC, it will have a single snorkel on the passenger side due to the placement of the A/C compressor interfering with the drivers side snorkel.