These have been fetching 200-265 USD the past year or so. I'd be a little surprised of they ended up far outside that range.
In spite of the economy I'm not seeing prices on desirable vintage cycling stuff generally coming down on Ebay as one might expect. Lots of less desirable stuff with highish starting bids going unbid on, but the sought-after and rare stuff seems to be holding strong. At least the stuff I find interesting enough to follow has.
Kurt Sperry Bellingham, Washington USA
2009/2/24 Hillery <email@example.com>:
> Wow. It may not be a record, but it's got my attention.
> Over $200 for :
> CHATER-LEA RIGHT AND LEFT CRANKS,CHROME NOS
> Item number: 190288703811
> They look great, and if it's what someone needs for a restoration, I comprehend (intellectually) but there are almost 4 days left on this and I'm watching out of sheer fascination.
> Bob Hillery
> Stratham, New Hampshire, USA