B&S Engine ID?

[seagiant]

Hi,
I have a Snapper RER Mower, with a 9HP Flat Head, "Power Built" recoil start engine.

No numbers on it anywhere I can find.

Does anyone know what model at least this would be???

 

[Gyro Gearloose]

Depending on age and model, J've seen flat heads with the numbers stamped into the flywheel shroud either near the spark plug or over the muffler, and I think the newer ones have an aluminum tag riveted to the shroud near the cooling air screen.