  The $BeppoSAX$ archive is currently the largest reservoir of high sensitivity
simultaneous soft and hard-X ray data of Seyfert galaxies. From this database
all the Seyfert galaxies (105 objects of which 43 are type I and 62 are type
II) with redshift lower than 0.1 have been selected and analyzed in a
homogeneous way (Dadina 2007). The X-ray data so collected allow to infer the
average spectral properties of nearby Seyfert galaxies included in the original
sample and, most notably: the photon index ($\Gamma$$\sim$1.8), the high-energy
cut-off (Ec$\sim$290 keV), and the relative amount of reflection (R$\sim$1.0).
The data have been also used to test some assumptions of the unified scheme for
the AGN. The distributions of the isotropic indicators (photon index, relative
amount of reflection, high-energy cut-off and narrow FeK$\alpha$ energy
centroid) are similar in type I and type II objects while the absorbing column
and the iron line equivalent width significantly differ between the two classes
of active galactic nuclei. Confirming previous results, the narrow FeK$\alpha$
line is consistent, in Seyfert 2, with being produced in the same matter
responsible for the observed obscuration. These results, thus, support the
basic picture of the unified model. Moreover, the presence of a X-ray Baldwin
effect in Seyfert 1 has been here measured using the 20-100 keV luminosity
(EW$\propto$L(20-100)$^{-0.22\pm0.05}$). Finally, the possible presence of a
correlation between the photon index and the amount of reflection is confirmed
thus indicating thermal Comptonization as the most likely origin of the high
energy emission for the active galactic nuclei included in the original sample.
