A flower frog is a wonderful way to assist your displays of fresh cut flowers, holding them in place and in style. Martha Stewart has a tutorial.... http://www.marthastewart.com/271596/how-to-use-flower-frogs
The frog listed here is clear with an approximately 3.75 inch (9 cm) diameter (at the top including a bit of a lip then tapered at the bottom) and 11 holes that go all the way through for the flowers.
I have a second one that is the same width, also with 11 holes but just a slight bit flatter in shape. Please convo me if you'd like that one (or if you want both).
It probably dates from the 1960s to 1970s but I can't place the date exactly so I don't want to specify a date.
Please note that I refund shipping overages if they are more than $2. If you purchase several items, this can be a significant amount of refund!