diff --git a/prev_NSBMD.png b/prev_NSBMD.png new file mode 100644 index 0000000..315ee47 Binary files /dev/null and b/prev_NSBMD.png differ diff --git a/prev_NSBMDtoNSBTX.png b/prev_NSBMDtoNSBTX.png new file mode 100644 index 0000000..28138d7 Binary files /dev/null and b/prev_NSBMDtoNSBTX.png differ diff --git a/prev_NSBTX.png b/prev_NSBTX.png new file mode 100644 index 0000000..61c16e7 Binary files /dev/null and b/prev_NSBTX.png differ