Dave Goldstein rooster apparatus

Dave Goldstein rooster apparatus with original 18mm slide, female to female adapter, 4 mini fritted discs, and a 14mm slide adapter. The fritted disc in the piece is slightly stained and there are minute scratches on the bottom of the base. I bought this new old stock from Dave Goldstein and that's why the adapter # and piece # on the base do not match. This thing still functions great I'm just trying to thin my collection to help pay for my wedding.