Lund Observatory tables for conversion of galactic coordinates : from the system based on the pole R.A. 12 [hours] 40 [minutes]; DECL. +28? (1900.0) into the system based on the pole R.A. 12 [hours] 49 [minutes]; DECL. +27?.4 (1950.0) and vice versa (Anals of the observatory of Lund, 1961)