  Using the results obtained by Staruszkiewicz in Acta Phys. Pol. B 23, 591
(1992) and in Acta Phys. Pol. B 23, 927 (1992) we show that the representations
acting in the eigenspaces of the total charge operator corresponding to the
eigenvalues $n_1, n_2$ whose absolute values are less than or equal
$\sqrt{\pi/e^2}$ are inequivalent if $|n_1| \neq |n_2|$ and contain the
supplementary series component acting as a discrete component. On the other
hand the representations acting in the eigenspaces corresponding to eigenvalues
whose absolute values are greater than $\sqrt{\pi/e^2}$ are all unitarily
equivalent and do not contain any supplementary series component.
