This is a .965 diagonal prism for solar viewing. This was made at least 15 years ago by Tasco of Japan (not china or Korea). It is in excelent condition and is in it's original box. These were ment for scopes 60MM aperture or less. An aperture larger than 60MM could let too much light thru to your eye, so this one should be used (or at least supervised) by adults.
$25 including shipping to the lower 48
I will accept PayPal from confirmed users.
SOLD, Thank You Gerry