Vintage Boeing Airliner Cabin Altitude Selector / Indicator, 13050-10

3 1/8" Vintage Boeing Airliner Cabin Altitude Selector / Indicator. Manufactured by Airesearch. P/N 13050-10. It shows very well and it would make an excellent show piece for the bookshelf in the office or home or just as a mock up panel instrument. Sold for display only, as is, no returns will be accepted.