We have a lot of nos nautical pins / brooches dating to around the 1980's or so.  They are nos is the original shipping bags.  They are a medium weight wire (firm) and measure as follows:  The red anchor is about 1 1/2" in H x 1 1/8" in W.  The white sail boat is about 1 3/4" in H x about 1 1/4" in W.  The blue wheel is about 1 5/8" across the center.