lib/fonts/isacr14.bdf

 ENDCHAR
 STARTCHAR sqsubseteq
 ENCODING 221
 SWIDTH 666 0
 DWIDTH 9 0
-BBX 6 6 1 1
+BBX 6 7 1 0
 BITMAP
 fc
+80
 80
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 fc
 00
 fc

 9080
 6100
 2200
 1c00
 ENDCHAR
-STARTCHAR natural
+STARTCHAR subset
 ENCODING 247
-SWIDTH 600 0
-DWIDTH 9 0
-BBX 4 9 2 0
-BITMAP
-80
-90
-b0
-d0
-90
-b0
-d0
-90
-10
+SWIDTH 666 0
+DWIDTH 9 0
+BBX 6 10 1 -2
+BITMAP
+7c
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 ENDCHAR
 STARTCHAR infinity
 ENCODING 248
 SWIDTH 666 0
 DWIDTH 9 0