Here is a rarely seen threadless I offer for sale. The colour is a true teal blue which is one of the hardest colours to find. This insulator is embossed MULFORD & BIDDLE (RS) U.P.RR. These are most commonly seen in aqua and cobalt blue. Condition of this historic piece is NM, it has a 1" domeside razorblade thing flake off the side and a crack starting at the base and stopping just above the WG lip. Piece is about 99% intact with the exception of the chip. Has extremely crude manufactuing lines and annealing fractures in the curvature of the base which is commonly seen with these threadless. On a scale of 1-10,this one would get about a 7.5. Book is $1,500 if it was mint. My price...$465 delivered. Now's your opportunity to get a rare threadless for a lot less! First mail by time/date gets this piece! More pics of all sides available on req. The colour in the pic looks dark aqua, but when seen in hand, you can see it's teal. Lots of folks have looked but no interest? Maybe I haven't given anyone enough incentive....;-)OK, lowest I can go on this piece....and you will not be unhappy! $380 shipped.