Tube assembly all original..but tube was in a black effect ,badly worn in places so brass shown through..had tube painted and the little clamp knob...brass..so it all showed up better in dark..easyly stripped off if needed to return to orignal..its a working scope at last after being in storage..the mount i made..just to get up an running.. i love the objective cell which can move about a inch forwards or back , this will help if i get an eypiece being akward on focussing.. its the machined 'V" on the eyepiece tube that gets me head scratching..just assuming its a hybrid..by way....chap came back to me a week later, wanted the filar eyepiece back.. so he offered me a F5 3' achromat ,an amici prism 2 small achromats and a length of 3' brass tube. .in exchange ....with that patchy black finish on it again...the offer i excepted...!