hard to tell if this is mid century gem or supermarket special.
all edges are bevelled, and it's very heavy at 1.97kg, but there are no metal fixtures i'd associate with absolute quality.
the elements are either stuck together with molten glass or ... glue; can't tell. the entire thing is glass beyond this.
i picked it up cheap because i think of fontana arte with this colour glass (verde nilo?), and couldn't find comparables at the time (still can't), and it might be something.
did have a label on the rear at one time (small, horizontal + rectangular) that looks different to modern price labels and more like a makers one as it's less obvious.
one extremely small chip to one corner i've spotted. have kept the receipt
dimensions >
largest back piece 24 x 19.5cm
picture holder 17.5 x 13.5cm
rest / rear 6 x 9cm
weight 1.97kg