If you look on UK Ebay - item No 220529128612, you will find Lyotard axles for sale...they are 9/16 ones..The seller is Ray Etherton of Bates of London fame - ebay ID - rey0531.
The price is a Buy It Now one for what appears to be £9.50 per pair NOS. Quite a bargain
Norris Lockley
Settle UK