diff --git a/bedstead.c b/bedstead.c
index 82a839e..78c525f 100644
--- a/bedstead.c
+++ b/bedstead.c
@@ -1435,8 +1435,9 @@ static struct glyph {
 
  /* Block elements */
  {{ 3}, 0x2580, "upblock", MOS4 }, {{12}, 0x2584, "dnblock", MOS4 },
- {{15}, 0x2588, "block",   MOS4 },
- {{ 5}, 0x258c, "lfblock", MOS4 }, {{10}, 0x2590, "rtblock", MOS4 },
+ {{15}, 0x2588, "block",   MOS4 }, {{0x7f}, -1, "block.sep6", MOS },
+ {{ 5}, 0x258c, "lfblock", MOS4 }, {{0x35}, -1, "lfblock.sep6", MOS },
+ {{10}, 0x2590, "rtblock", MOS4 }, {{0x6a}, -1, "rtblock.sep6", MOS },
  {{025,000,012,000,025,000,012,000,025}, 0x2591, "ltshade" },
  {{022,011,004,022,011,004,022,011,004}, 0x2592, "shade" },
  {{025,037,012,037,025,037,012,037,025}, 0x2593, "dkshade" },
@@ -1628,7 +1629,7 @@ static struct glyph {
  {{000,007,017,027,037,011,000,000,000}, U(1F69A) }, /* deliverytruck */
 
  /* Graphics for legacy computing */
-#define M(x, u) { {(x)}, U(u), MOS }
+#define M(x, u) { {(x)}, U(u), MOS }, { {(x)|0x20}, -1, "uni" #u ".sep6", MOS }
  /* space */     M(0x01, 1FB00), M(0x02, 1FB01), M(0x03, 1FB02),
  M(0x04, 1FB03), M(0x05, 1FB04), M(0x06, 1FB05), M(0x07, 1FB06),
  M(0x08, 1FB07), M(0x09, 1FB08), M(0x0a, 1FB09), M(0x0b, 1FB0A),
@@ -1914,6 +1915,10 @@ main(int argc, char **argv)
 	printf("Lookup: 1 0 0 \"ss04: SAA5054 forms\" {\"ss04\" (\"saa5054\")} "
 	    "['ss04' ('DFLT' <'dflt'> 'latn' <'dflt'>)]\n");
 	printf("OtfFeatName: 'ss04' 1033 \"SAA5054\"\n");
+	printf("Lookup: 1 0 0 \"ss16: 6-cell separated graphics\" "
+	       "{\"ss16\" (\"sep6\")} "
+	    "['ss16' ('DFLT' <'dflt'> 'latn' <'dflt'>)]\n");
+	printf("OtfFeatName: 'ss14' 1033 \"4-cell separated graphics\"\n");
 	printf("Lookup: 3 0 0 \"aalt: all alternates\" {\"aalt\"} "
 	    "['aalt' ('DFLT' <'dflt'> 'latn' <'dflt'>)]\n");
 	printf("Lookup: 257 0 0 \"palt: proportional metrics\" {\"palt\"} "
@@ -2134,6 +2139,9 @@ dolookups(struct glyph const *g)
 			if (strcmp((*found)->name + plen, "saa5054") == 0)
 				printf("Substitution2: \"ss04\" %s\n",
 				       (*found)->name);
+			if (strcmp((*found)->name + plen, "sep6") == 0)
+				printf("Substitution2: \"ss16\" %s\n",
+				       (*found)->name);
 			if (strcmp((*found)->name + plen, "sc") == 0)
 				printf("Substitution2: \"smcp\" %s\n",
 				       (*found)->name);