Hi,
I only can give some comments on the
byzantine coin:
The
type is
Sear 1830,
histamenon nomisma of
Constantine IX, mid 11th century.
Before you can buy such a coin with confidence you have to know some properties:
First, these coins are
cup shaped, but yours looks quite flat, although that may be the lighting of the photo. Is your coin a
cup or a disk?
Second, the
weight should be close to 4.40 g. Have you checked the
weight?
Third, the usual
diameter of this
type of
histamenon is 26-28 mm, deviations possible of course, going up to a
diameter of 30 mm or so. What is the
diameter of your coin?
Fourth, the
style of this
type varies widely. On first glance some features, especially the
head of
Christ look a little
bit odd, but not alarming.
So, if you can give more information, an estimate of authenticity will be much easier.
byzcoll