Blue Point wrench.  Stamped Nash SE 461.  15/16 Blue Point Boxocket.  Date code 1930.   about 17-1/2 inches long.
Its not in the cats,  So whats it used for.

Do you think it was used for assembly at the factory?

There are some Bonney Nash wrenches that the model number starts with SE ***   also, so I think its for the car,  maybe a wheel nut wrench.

Yeah, Nash factory service tool, but I don't know what for..

SE-125 is a Water pump nut wrench
SE-270 is a drive shaft pinion nut wrench
...
hmm

So, drawing a straight line through the catalog numbers, with the lowest number being on the water pump, this must be a rear bumper bolt wrench.

No?

Trailor hitch....

(Scary thought for the day...towing something with a Nash..)