Have a nos large hole 10 pound fuel pressure guage. OD of case measure /2.6 New in original box, includes instruction.and warranty page. These are what 90% of the race cars used back in the 60s and early 70s. If you look at pictures all the race cobras had this gauge. New versions are 15 pounds . This was bought when I had a Team cobra 20 years ago and it has been on the shelf since then. still as nice as the day it was made. $250 Postpaid 920 434 3645 jim@shelbyparts.com