|Diamond Block, Imperial|
|Probably an Imperial product. The lamp at far left with a smoke Diamond Block shade sold for $225 in 2002. The smoke shade at immediate left sold on eBay in 2004 for $25, along with three others for the same price each.
In 2007, a pair in smoke sold at live auction for $50.
In 2015, a pair in marigold sold for $40.