SaraJane will be 90 sometime in April as far as I have been able to determine. What reference are you guy's using to determine your T's birthday?
Almost forgot 14816553
I use Bruces "big book" to check on birthdays, for lack of an actual body number from the factory the engine number "is it". I'm coming up with March 21, 1927. 4770 units built that day.
According to "Model T Ford- The Car That Changed The World" by Bruce McCalley, your car was produced on March 21, 1927. One of 4770 produced that day!
Sorry, Tim beat me to it! And explained it better.
My understanding is that the engine serial number was stamped on once the engine was assembled. Your car being a '27, that same number should also be stamped on the top of one of the frame rails.
My understanding is also that the time between when the engine was assembled and when the car it was installed in rolled off the line could be as little as two days, or much more if the car was built at one of the branch plants that received assembled engines in bulk from Ford.
Right or wrong? Go with it! It is close enough. One of my cousins thought his birthday was December 1st for the first dozen or more years of his life. His dad had faked a birth certificate to get him into Kindergarten a year early. His actual birth-date was Dec 8 nearly a week after the Kindergarten enrollment cutoff date of Dec 3 (at that time in that county).
The fact is, MOST model Ts cannot have an actual true production date, for many reasons. But most in the hobby have accepted the "official" engine production record for many years. And why not? Records indicate that many engines were installed into the chassis and body added the same day. Many, probably were done within two days. Were you finished becoming who you are two days after you were born?
Drive carefully, and enjoy, W2
Thank you now I need to get a copy of Bruce's book
Somewhere I found a date of May 1921 for ours.
The best form of the Encyclopedia is the disk version because it also includes the service book, all the owners' manuals, parts, advertising literature, etc., etc. Ordering info here: http://dauntlessgeezer.com/DG80.html
Somewhere, I found as web site that provided the first serial number assembled by day. For my 1916 Touring, the Engine date is June 17, 1916 and the assembly date was June 20, 1916. Wish I could remember where that site was!
Thomas, wow though would be neat to have! To me, that's one of the most frustrating aspects of these cars, just WHEN was it REALLY "made into a car"...If you find it, of course let us know!