You should know what these are by now and if you don't you need to familiarise yourself with the search function. Anyway I have 27 of these, all working, for sale.
Prices are (inc postage)
1 switch = £9.50
2 switches = £16.50
3 switches = £23.00
4 switches = £29.50
PM me what you want.
My Paypal is steven.pack@aol.co.uk