Crystals: Ham/CB Frequency S.I.U 3.541 - $80 (Lomita)

I have a lot of these crystals.
These have been kept in a smoke-free home, sealed-up in a climate-controlled environment.
Call me if you have any questions.
Not sure of the brand, unless the below info states the manufacturer? This sale is for a bag of 200 crystals for $80.
00 Frequency is S.
I.
U 3.
541