CSN 66 6402 Zd-1983 Revision b) - 4/83 Czech National Standard 66 6403 Sensitivity regulations for black and white films. test. Packaging identification
1983CSN 66 6402 Zd-1983 Revision b) - 4/83 Czech National Standard 66 6403 Sensitivity regulations for black and white films. test. Packaging identification