Not sure, I just purchased this ambulance from the PO in Clarksville, Texas.
I'm still trying to ID the conversion company. Was originally owned by a funeral home in Paris, Tx. then purchased by the P O in 1971. Laid to rest in 1981, we'll see how long it takes for me to resurrect it. Original 292 V8 was replaced by a 6 cyl. Steve Creed Ft Worth TX