Feather Micro Focuser to suit modern C11's (and C14) with the clover leaf shaped rear cell.
Excellent condition,
$320 posted (new is ~$550 posted)
Fitting instructions on this page:
http://starlightinstruments.com/stor...product_id=261
Both C11 and C14 Edge are written on the focuser, so I guess it fits the C14 as well.