Here ya go:

scroll down- there is a lovely Stronglight alloy cotterless crankset there from the 1950s.

Hilary Stone Classic Corner Cranksets & Chainsets

Here are the Lyotards:

Lyotard Alloy Pedals Very Smooth Spinning Made in France Free Campagnolo Decal | eBay

The trick is finding them that match the Stronglight, but its a French thread so that will be easy. Seems like a French thread would be more appropriate anyway for that bike.