I had to replace the head on my 27 Fordor recently (it was cracked pretty bad). I purchased a used one from a really nice gentleman in the area. He said my head is an aftermarket (cast iron) because it does not have the Ford script. The one he sold me had the Ford script. I seen 2 Model T's on ebay recently with a non script head. Is it possible that Ford made a head with no script, or is this some type of popular aftermarket cast iron head of the era? Appreciate the help!!
The script was deleted on the 26-27 models so in your case it appears you had the original head.