Out of curiosity, I just bought one of these on Ebay for the princely sum of £1. With P&P, it came to £2.59 
It is described as being in nice, clean condition and judging by the photo, I can't see any tarnishing or wearing of the chrome plating.
It comes with vintage blades but I think I'll buy some modern coated ones for the purposes of trying it...
I'm really looking forward to it!

It is described as being in nice, clean condition and judging by the photo, I can't see any tarnishing or wearing of the chrome plating.
It comes with vintage blades but I think I'll buy some modern coated ones for the purposes of trying it...
I'm really looking forward to it!