Archived posting to the Leica Users Group, 1998/10/02
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I have a formula from 1976 for D-19b which is described as a high contrast film developer for x-rays and aero films. If this is of use I wll email it. Gerry (UK)