Since I converted my Marchal driving lights to H3 Halogen bulbs, I have no need for the older, Tungsten bulbs for them. Both Driving and Fog lights from Marchal used the same bulb, P/N 900 631 122 90 Clear
I have four of those bulbs, two NOS bulbs from NLA Limited and still in the boxes, with two more unboxed that I can ship well protected. All are in working order and on the right in the photo.
I also have two more bulbs, NOS Hella in boxes, both Sierra Madre P/N 900 631 009 90 Clear (yellow boxes, on the left). IIRC, I picked these up at the Carlisle raffle thinking they were the same as the Marchal bulbs, but they are Hi/Lo beam bulbs to fit 356/VW headlights.
If you can use any of these, PM me with an address and which ones you would like and I'll ship them to you.
Gordon