Three-in-One, Imperial
The toothpick holders are usually marked IG though it's possible some are not marked. That doesn't mean they are old however. These IG marked ones are seen frequently on eBay in green but known in ice blue, ice green, purple, and yellow amber. Any color seems to sell frequently in the $10 to $15 range though, for some reason, people occasionally will pay a lot more. In 2004, one in ice green (Meadow Green), sold for $25.

The covered jars are quite rare and are marked IG. In 2002, one in ice blue (Azure Blue) sold at a live auction for $45. In 2004, two have sold in Azure Blue, one for $76, the other for $40.

Here is a photo of two small vases made from Three-in-One contemporary toothpick holders (along with an Indian head toothpick holder). It was sent to me by Alan Pickup. He says that one has a faint IG mark, the other appears to have had the mark ground off.

In 2014, there was an auction sale of an ice blue 10-inch vase for $250.