Copy scope lens. Fits white 3.5" PVC thin wall tubing perfectly.
F.l. 280mm, aperture approx. 80mm. There are a couple spots on
the coating on the rear lens group, I've tried it and it worked the
same as another lens I had of the same kind with perfect optics.
Coating appears to be mag-fluoride. Housing is aluminum, three
$10 plus $8 shipping.
Paypal, or postal money order or cash, if you want to send
it via mail.