Help dating a Fordson

[CWAMuseum]

First off, I know I could say "circa 1920s" and it would be adequate, but if possible, I'd like to come closer. This tractor does not have a serial number on the engine block so presumably it was replaced sometime. I'm attaching photos from all around it in hopes I can get at least early 20s, mid 20s, or late 20s.

Thanks in advance.

 

[CWAMuseum]

I found a casting number on the engine block so I'm going to use that date: 2-14-19

 

[560Dennis]

Well ,I think you did pretty darn good on that quest.
Where did you find it ? I like to look on mine . My engine was a factory rebuild with oversized piston. Too ,a date of the rebuilt stamped into the flywheel with the workman’s name . The late Duane Helman said He had never seen that. For Duane to say that ,it’s worth note .