I am not sure on the vintage of these 2 paint brushes.  If I had to estimate I would say 1980's - 1990's.  They give the appearance that they are fake brushes (I had to touch them to tell they were real).  They are both the same made by 3M 1 1/2" brushes and measure about 8 3/4" in length.  I believe they have been used as the bristles are slightly off color.  The handles are made from layered cardboard.