21 Year Service Pin... What Company/Organization?

[biggbill]

No Markings on its rear. From Estate of a pin collector.
21 years marked, measures only 1/2" wide.

Any ideas?

Thanks!

biggbill

 

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[traderoftreasures]

EYEB eyeball.com maybe

 

[biggbill]

It could also NOT be a service pin and the 21 is signifying 1921...

 

[traderoftreasures]

or EEYB east end youth basketball ?

 

[Monty]

It's probably a fraternity or sorority pin and the 21 is the chapter? Monty

 

[Born2Dtect]

A number of colleges offer "Ecology and Evolutionary Biology" programs. If 21 is for 1921 it would be an old one.

Ed D.