Father your blessing!
Is there a limit on the number of εγκόλπια hierarchs are permitted to
wear? I at first thought the Primates of the Orthodox Churches are
permitted three, Metropolitans two, Bishops one...but have seen
Answer to Question 51.
The archieratical enkolpio is not considered a vestment,
but an emblem by which the rank of Bishop is recognized in the Orthodox
Church. It was sanctioned as part of the Bishop’s attire by royal
command in 1856.
As far as the priesthood is concerned all bishops are equal and belong
to the same rank, but there is a rank of honour according to the See
they occupy. Thus in the Greek Church there is the Patriarch or
Archbishop followed by the Metropolitans and Auxiliary bishops or
Chorebiscopi. During the Liturgy and other services all Bishops wear the
Cross and enkolpio. A Patriarch or Archbishop wears a second enkolpio as
a recognisable emblem of his rank. At other official gatherings or
functions the Archbishop might wear only the Cross and enkolpio in which
case the other Bishops present will wear only the enkolpio.
With love in Christ