Fine Tall Master clock by National Time Recorders Ltd

Case: This is of top quality Mahogany.
Size: Case stands 52.25 inches tall, 17 inches wide overall and 9 inches deep.
10.8" diameter dial with brass bezel.

Movement:

"A" shaped brass plates to movement have a family resemblance to all the NTR movements I have seen ie to those in spring wound time recorders, impulse time recorders and the NTR slave dial

Many parts of this movement appear identical to those used in the spring wound time recorders for example, all the motion work, the pendulum rod (though longer in the master), the hands and the uncommon aluminium "A" shaped casting on which the movement is mounted.

The movement is stamped "National Electric" and also has a serial number 3338. These master clocks seem to seldom show up and may be uncommon. I know of one other similar clock with the serial number 3148. I also know of one other master clock of different design, possibly later as it has a less elaborate case and a square dial fixed by four wood screws as are most of the later spring wound recorders. I am trying to obtain a picture and permission to include that clock in the museum.

It amuses me to speculate on the serial number. I doubt if they made that many of these clocks so it is possible that they started serialising from a number greater than 1, say 2000. Alternatively, such records as I have suggest that in early days NTR used a single run of numbers for all clocks they produced, and in that case the master clocks were made quite early in the company's history, say circa 1922

The use of this large brass movement is interesting and suggests to me that NTR, having established a demand for their spring wound Time Recorder, found that in order to keep up with the competition they needed to expand their range to include electrically operated items such as a master clock, an impulse driven Time Recorder and slave dials.

They would seem to have achieved this by modification of the original recorder movement rather than by a new set of designs.

They would have achieved some economy by using the same parts and the number of spares needed to be stocked would be less

Both slave and Master clocks by NTR appear somewhat rare.