I enclose an original letter and B/W Picture from January 3rd 1964, this will hopefully answer the question of who made Prospector.

A perfect description Badpenny.

This is the machine Brigham is talking about: Cromptons 3d Derby racer, one of my favourites as well.

Cromptons 3d Derby racer flyer.

Video of Orbito slot Machine on the way. If one of you clever people can add the video to this thread please. I have only used my phone to record the video quickly because there was a lot of interest in how this machine worked. Video ready around 5-15pm, On you tube search = Orbito slot machine, Che...

This is different to the Jugola etc. as it does have columns that do hold 3d bits. When the column is full its contents are released to the player,

On closer inspection it's probably the brightness from the extra bulb added in the top Electrodart sign, but clearly wires are missing, as the two payout thermal blocks are missing from below the six relays. Possibly the seller would not know this though, and I always seem to remember square payout ...

Regarding the Electrodart for sale on eBay, Item Number 273157765732, if you look at picture 3 you can see the dart image lit just above the SCORE EITHER, yet on picture 2 (inside) there are NO wires and no bulb or bulb holder in sight. The seller Messaged me stating clearly that 'no wires were miss...

Someone has used Buy it now at £300 , They will be in for a bit of a shock , Most of the Bet placed Lights did not register and the payouts were very dodgy to say the Least !

I saw it in January, It is the same one because the 2 x red 2p signs on the front and also I saw it for myself and will never forget those coloured wires all over the place, looks like the apprentice electrician had been to work on it.