I believe those are not easy to find nowaday, I was lucky to get one like that from ebay for a reasonable price.
What is the issue with key blanks for 308's? I checked out the dealer and found the price to be above $200 nice keys but why so much? ITS A KEY! I did find a blank by Dominion lock Company # R6IN from a local key shop for around $10.00, that is reasonable, boring, but it works allows me to drive not admire my key. I have also found an ILCO # H61VR for not much more.
Ferrari of NA still sells them. $200 each. You need to provide title or registration of your car and they can 1) cut the key for you to the VIN, or 2) send you the blank. They decide.
Neiman blanks are pretty expensive..I have used both Ilco and Taylor....they both make the identical profile. $4 each last time I checked.
I have one of each for my car - the Nieman and the one like in the second photo. I think thats cut from an F50 blank isnt it?? Or am I mistaken? PDG