A further requirement for exemption is that the establishment must
be ``commonly recognized'' as a country elevator. The word ``commonly''
means ordinarily or generally and the term ``recognized'' means known.
An elevator should be generally known by the
public as a country elevator. This requirement imposes, on the
establishment for whose employees exemption is sought, the obligation to
demonstrate that it engages in the type of work and has the attributes
which will cause the general public to know it as a country elevator.
The recognition which the statute requires must be shown to exist if the
employer seeks to take the benefit of the exemption (see Arnold v.
Kanowsky, 361 U.S. 388, 395).