There is a Pierce-Arrow radiator offered on eBay.
The Gent originally listed it as a Series 80 – 81 radiator, but I sent him a message telling him that it was not.
He re-listed it as just a P-A radiator.
I do not know what model / series / year, but it looks clean and a bit reworked.
The listing is shown below.
Looks exactly like my 1929.
Jak.
Identification MADE by Jak!
Thanks Mate!