Hey mikiec:
If you're still looking for a leather flying helmet, I've found a source. It's a company called Flight Suits Limited, out of El Cajon, CA. Telephone number 800-748-6693. Item number 7301, page 27 out of their paper catalog or you can go to
www.flightsuits.com. Cost is $54 and they come in sizes from small to 2X-large.