This is an Orion 1.25" Variable Polarizing Filter. Excellent condition with case. Works great on the moon. Can adjust to get just the right amount of light through the eyepiece. For example, the light from a full moon needs way more filtering than does a crescent moon and this filter allows you to adjust to the conditions.
Will sell to you for $25. I will send it certified mail at my cost. Paypal or upon receipt of money order.