{HEAD ~ The top cap member} has a channel like configuration which includes {TAIL ~ outer side flanges} which slidably overlap and embrace exterior sides of the panel member to permit at least limited vertical positional adjustability of the top cap member relative to the panel member 
{ HEAD ~ The top cap member } has a channel like configuration which includes { TAIL ~ outer side flanges } which slidably overlap and embrace exterior sides of the panel member to permit at least limited vertical positional adjustability of the top cap member relative to the panel member
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH