For sale:
This is the classic Televue 2" 2x Big Barlow, 2-element fully multicoated, with a low-profile 2"-1.25" adapter, captive lock screw, threaded for 2' filters, comes with end-caps.
This is one of the recommended outstanding 2" barlow from Televue. For me, I hardly use it nowadays as I already have quite a few eyepieces to use.
The condition is optically excellent, with some set screw marks on the barrel. Brand new it would have cost $205 USD not inclusive of shipping, now it is going for $205 SGD cash & carry. SMS or PM me if interested.