diff --git a/12.temporary_ins/20.magnetostatics-vacuum/30.ampere-therorem-demonstration/20.overview/contours_enlacees_1b_L1200.gif b/12.temporary_ins/20.magnetostatics-vacuum/30.ampere-therorem-demonstration/20.overview/contours_enlacees_1b_L1200.gif
new file mode 100644
index 000000000..eb9a69668
Binary files /dev/null and b/12.temporary_ins/20.magnetostatics-vacuum/30.ampere-therorem-demonstration/20.overview/contours_enlacees_1b_L1200.gif differ