[TowerTalk] hy gain dipole traps?

[Greenacres113 at aol.com]

i have a set of blue/green traps for a dipole. beleive they're  Hygains.
they say forty[40] on them. i assume they were for a  40/80  or multiband 
dipole.
age is probably 25+ yrs.
anyone familiar with them?
 
bob k9il