Proposed American Standard: Specifications for Determining Photographic Speeds of Roll Films, Film Packs and Miniature Camera Films

American standard association proposed m

American standard association proposed method for determining speed of film

✍ R.H.O. 📂 Article 📅 1941 🏛 Elsevier Science 🌐 English ⚖ 109 KB

With total gold production valued at approximately $25,375,000 during the past year, Alaska hit an all-time record which surpassed even the great gold rush days, W. C. MEN-DENHALL, Director of the Geological Survey said in making a preliminary report of the Territory's total I94O mineral production.