This Filter Does NOT Screw into Any Celestron, Meade, Orion or B&L
Criterion Ocular.
Located during year inventory, just posted, no idea of its provenance.
As such, priced accordingly !

Note :
Considering, Two Were Located, These May be a Pair that are Used 
with Fujinon, Kowa or Zeiss Giant Binoculars, as Authorized Dealers.

Many Hundreds of other Unique - Rare - Astro Accessories Await.
Request custom client posting of catalog items for eBay purchase
with the exception of some Telescopes and "Pickup only" Equipment.
Custom Bundling is Possible for Domestic & Export Orders,
email your want list  before placing an order.
Checkout the Entire Inventory Online, Search For :
astroptx

Only Quality Astronomical Filters for the Serious Observer :
Why Use $1 Filters with your Fine Eyepieces !
Over Three Dozen Filter Types and Sizes !!
.965" - 1.25" - 2" (48mm) HR Glass, Stackable in Metal Cells.
Celestron - Meade - Bausch & Lomb (Japan) 
Tiffen - Hand Assembled and Made in the USA  (14 Different)

Note : 
When Upgrading  Your (1.25") 1 1/4" Filters, Consider These.
Quality Neutral Density ND3 / ND6 and ND9 Moon Filters
are Available.
Manufactured and Hand Assembled in the USA
at $7 each - Now eBay Posted - Search for :
Telescope "Moon Filter / Lunar Filter  (1.25") #ND9 Neutral 
Density (USA)
Also consider a Polarizer Filter(s), same price at astroptx.