This is a portion of my block LRI collection. Sometimes called 'pig pens', I prefer the old hobby term 'block' for these highly sought after LRIs. The photo is too dark. The top two on the right are deep green/teal bordering on blackglass. The middle left is a nice deep yellow green piece. The second from the right on the middle shelf is a wonderful root beer amber. The blue shades are accurate. Fun items to collect.