Two of these eyepieces,the 25mm and 12.5
are marked Japan with the circle T logo
on the chrome base.They are identical to
the University Optics orthos in every way.
$40 plus shippng firm.
The other one,the 6mm,is made by Meade.It has a
flat black top with the words multi-coated in blue.
It has a sicker which says Japan and the circle T logo.
$65 plus shipping firm.
Thanks for looking and clear skies.