So crew cab in his house (almost finished house

)

Fuel tank and engine out
Getting the tank back from silverton today
Engine is stripped for cleaning as barrels are full of old oil dust and the dreaded mouse nest on top of the one barrel
Powder coating all parts,new rings as the engine is open so just do them, new push rod tubes ,heads are fine
The engine is in such a good nick inside if it did a 1000km before being parked in 1982 its alot !

Would this be the factory stamp to say its ok after rebuild?