Gossen Scout 2 ambient/reflective incident light meter with lanyard. This is a selenium cell meter, does not need a battery but best in brighter conditions. Working, reads bright sunlight on 18% gray card at 500th at f22 at ASA 400 so pretty close, adjust the ASA to suit your negative desired density. 

WHO WE ARE: Oddog2 is a husband/wife team, home-based small business specializing in the buying/refurbishment/selling of primarily photographic equipment. We do occasionally have other types of things to sell that come to us as a result of our search for camera-related items. We have over 50 years of experience with photographic equipment, both as a shooter (17 years newspaper photojournalist) and as a collector/restorer/seller. We have been on eBay as Oddog or Oddog2 since September 1999.