A pair of solid glass blocks: 

New York City Subway (unverified)

slight green tint

 

 7" square  x 3.0" thick

Solid

16 pounds each

Minor surface scratches

No cracks

(2 pairs available; contact for discounted price)

Thanks for looking.

MP

Free delivery within 20 miles of 12477

(The least expensive way to ship these is in two separate medium Flat Rate boxes)