Update: 4X powermate has been sold. BB still available.
I have these two TeleVue 2" Barlows, both in nearly mint
condition. Both have 1.25" adapters and end caps. Both are
the thumbscrew version. I probably have the original boxes.
I will sell the Big Barlow for $150 shipped in US (about $200
retail) or the Powermate 4X for $200 shipped in US (about $265
retail). If you buy the pair I'll discount them another $20.