A spectator secretly sets the hand of the clock to an hour of her choosing and then slides the cover over the clock to hide the clock face. On taking the clock back, the magician is able to divine the correct hour to which the clock was set. Once the possession of Cambridge magician Claude Perry.

Copyright Kikkerland Design. The battery powered design is most unusual. The long minute hand functions in the normal way. However the short hour hand is printed on the white circular background, which itself rotates once every twelve hours.

When the vertical stem is pulled to one side and released, it vibrates backwards and forwards and the time appears suspended in mid-air. Purchased in 1997. Complete with original box and instructions. The box says Copyright Hoffman Products, Int’l.

The short hand is the minute hand. The long curved hand sweeps out the hours. The current hour is at the position where the curved hand intersects the vertical hour numbers. A sticker on the box says it was designed and made in the UK by Robert Darwen www.ideasintime.co.uk.

A watch is locked inside the box, where it can still be heard ticking. The watch is then produced from elsewhere. The box is well constructed and finished, with inlaid wood and mother of pearl on the outside, and purple velvet and paper on the inside. There is a mirror on the inside of the lid.

The magician asks a person to set the hand on a clock to an hour and then place the Bakelite cover on top so as to hide the face. The magician takes the watch back and mysteriously reveals the hour to which the watch was set. Unfortunately the collection only contains the Bakelite cover, but by kind permission of Malcolm Norton we also illustrate the trick from his own collection.

The clock dial is held or suspended from a stand. The pointer can be handed out for examination. The magician asks the audience for a number from 1 to 12, and then places the pointer on the spindle and spins it. The pointer will always stop at the chosen number. The item has its own purpose built carrying case, deep enough to carry two dials in case of damage.

This clock, which has a removable glass cover, is meant to represent a cheese dish. As the clock ticks a small mouse moves backwards and forwards apparently nibbling a piece of cheese. Just below the numeral 6 on the clock dial is the word GERMANY.

The correct time is read at the top of the clock as the black gear wheel rotates. One side of the gear is in Roman numerals, the other in Arabic numerals. There is no manufacturer’s name on this battery operated clock. Lettering on the back of the clock reads: ‘This Product is World Wide Protected Patent # 08/675,866’.