Introduction. I have been on the lookout for a 30hr single hand longcase clock for many years, you can't rush these things, but not found any locally and those on a famous internet auction site tended to be 'buyer collect', 'no returns', 'expensive shipping costs' etc, and I didn't want to drive long distances in order to find out that they were not the clock for me. Finally one turned up which was only 6 miles away and so I bought an 18th century 80 inches tall brass dialled (10 inch) single hand longcase clock with posted frame movement in running order by William Wise of Wantage. As I expected closer examination showed that some work sould be beneficial or essential, details follow. The pendulum. This has a replacement suspension spring, has had its length increased and the bob is badly damaged. The rating nut was right at the lower limit of its travel and my Microset timer showed that the rate was 3583bpi. I melted the lead out of the bob and reshaped the brass shell as far as possible then made a carboard cylinder to fit around the bob. This cylinder had a lower second layer fitted inside to form a ledge for the brass shell. The bottom pendulum fitting was wrapped in a couple of layers of paper and passed from side to side through the cylinder just above the shell. I melted sufficient lead in a 2oz tobacco tin, picked this up with a surgical clamp ( they grip well and lock in place) then poured it into the cylinder. Once cooled it is easy to withdraw the pendulum fitting as the paper has prevented the lead sticking to it. I'll get to the pendulum extension later. The movement. A typical arrangement with the going train at the front and the striking behind. The pillars are rectangular, the movement bars show signs of hammering, are held in place with wedges, one is a replacement, and have cruciform side extensions. There is very little wear on the wheelwork considering the age of the clock so it must have stood idle a lot of the time. One or two pivot holes have been closed by punching around them. There are no redundant holes in the brass so a marriage between dial and movement is unlikely. The going train has Great wheel 84, 2nd 6/72, Escape 6/42, Pinion of report 16 and hour 48 giving a required rate of 3528 bph with the Great wheel turning three times in 12 hours. The front pivot of the hour wheel is the hole in the dial a flexible brass spring holds the hour wheel in place. The pallets have been refaced with small slips of watch mainspring and the fork refixed to the crutch rod. The escapement layout is standard with the pallets spanning 10½ teeth of the 42 tooth escape wheel. The strike work is unusual in having pins for locking and warning, no hoop wheels, just one arbor carrying locking and warning detents with the lifting piece and countwheel detents fitted on squares at each end, they are a good close fit. The countwheel has protusions instead of slots, they work in the same manner as if they were pins. When striking is to stop the countwheel detent is raised bringing the locking detent up with it and the train stops. At warning the lifting piece carries the locking detent up with it until this clears the locking pin. The train is now free to run but the warning detent is now in the path of the pin on the warning wheel so motion is arrested. When the lifting piece drops it takes the warning detent with it the train runs and the locking detent falls back to the locked poition. During the striking of the first blow the countwheel detent drops from the protusion on the countwheel so the train can run freely. The strike train has 13 pins on a Great wheel of 78 teeth, which turns six times in twelve hours, carries a pinion of eight teeth driving a countwheel of 48 teeth. This pinion is only held in place by the presence of the countwheel. The other train counts are Locking 6/60, Warning 6/48 and Fly 6. The only work required to the movement was cleaning. During assembly I found the setup of the striking quite tricky as all the detents and the lifting piece move together. The great wheels were obviously designed for use with chains as there are cutouts for the links to rest in. The weight pulley is modern. The dial. Brass with primitive engraving af a coastal scene in the centre, a separate chapter ring and spandrels. The spandrels of a scroll type popular 1760 – 85. The dial has a coat of lacquer but I cleaned down the chapter ring and resilvered it. The hand. Of steel and typical of designs used in the 18th century. The square hole in the hand is not a very good fit on the square at the end of the hour arbor, about a ¼ of an hour's slack. I made some tiny wedges to hold it in the correct position. The weight. Made of lead, 12lb 12oz which is too heavy. I experimented with lighter ones then cut the original down to 7lb. The case. Of dark oak 80 inches high, the plinth starts very close to the lower beading on the bottom panel so the case may have been shortened. The marks on the inside of the case back did not line up with the position of the pendulum bob so I wondered if there had been a marriage, so back to the pendulum. The pendulum rod had been lengthened by cutting it and soldering the ends into a piece of copper tube but whoever did this seems to have forgotten that single hand longcase clocks do not have to beat seconds and produced a pendulum that, with the rating nut in the middle of its travel, did beat seconds. Finding that the clock ran fast the rating nut had been moved as far down as possible, but this was not enough. Some of the damage to the bob could have been an attempt to move its centre of mass further down As received the clock was beating 3583 per hour. The square section rating screw was badly damaged and broke in two as I turned the rating nut. I cut it away and silver soldered a new square section rod into the bottom block of the pendulum then cut a thread into it, filing the end of the square rod into a round taper makes it easy to start cutting the thread. I separated the two sections of rod and stuck one end into a piece of drilled dowelling. I also put the other section of the rod into the dowelling but held it in place by squeezing the dowelling with a clamp, making adjustment of the length easier. Once the length was correct to give 3528 bph the pendulum bob lined up with the marks on the inside of the case back. As the beat rate is non standard this is a good sign. Historical notes. Wantage was part of Berkshire but is now in Oxfordshire and lies about 15 miles south west of Oxford. I could only find two photos of other clocks by William Wise, both of 30hr duration. Both were two handed clocks but one of them had a chapter ring marked with quarted hours and no extra minute division, a possible later conversion. Both had similar primitive engraving in the dial centre, the building with a smoking chimney was on the left on both of them but one had field to the right and the other a river. The cases were of a similar flat top style to mine, one was mid-range oak in colour, the other had been stripped of all original finish so was very light. Other notes. I must keep this clock out of earshot of the ticking of a standard longcase clock as the ticking of each would synchronise only once every 51 seconds and this varying rhythm would drive me nuts.