diff --git a/src/mame/drivers/midwunit.cpp b/src/mame/drivers/midwunit.cpp
index bdcfa79bfc6..f8bf54383aa 100644
--- a/src/mame/drivers/midwunit.cpp
+++ b/src/mame/drivers/midwunit.cpp
@@ -1002,8 +1002,8 @@ ROM_START( openicea ) /* PCB had alternate ROM labels showing the dates & checks
 	ROM_REGION16_LE( 0x800000, "dcs", ROMREGION_ERASEFF )   /* sound data */
 	ROM_LOAD16_BYTE( "open_ice_l1.2.u2", 0x000000, 0x100000, CRC(8adb5aab) SHA1(4c25bc051c90947f3366f83ac5ca8dc78e26b8a4) ) /* U2  OPEN ICE HOCKEY  R1.2  10/10/95  1900 */
 	ROM_LOAD16_BYTE( "open_ice_l1.u3",   0x200000, 0x100000, CRC(11c61ad6) SHA1(324621d6b486399b6d5ede1fed39d4e448cdeb32) ) /* U3  OPEN ICE HOCKEY  9/1/95  4D00 */
-	ROM_LOAD16_BYTE( "open_ice_l1.u4",   0x400000, 0x100000, CRC(04279290) SHA1(daf1e57137ae1c3434194054e69809bfe3ed1fc3) ) /* U3  OPEN ICE HOCKEY  9/1/95  4700 */
-	ROM_LOAD16_BYTE( "open_ice_l1.u5",   0x600000, 0x100000, CRC(e90ad61f) SHA1(59eeabcae7e0e70cdb4472cde64b8a28b07ede98) ) /* U3  OPEN ICE HOCKEY  9/1/95  C200 */
+	ROM_LOAD16_BYTE( "open_ice_l1.u4",   0x400000, 0x100000, CRC(04279290) SHA1(daf1e57137ae1c3434194054e69809bfe3ed1fc3) ) /* U4  OPEN ICE HOCKEY  9/1/95  4700 */
+	ROM_LOAD16_BYTE( "open_ice_l1.u5",   0x600000, 0x100000, CRC(e90ad61f) SHA1(59eeabcae7e0e70cdb4472cde64b8a28b07ede98) ) /* U5  OPEN ICE HOCKEY  9/1/95  C200 */
 
 	ROM_REGION16_LE( 0x100000, "maincpu", 0 )   /* 34010 code */
 	ROM_LOAD16_BYTE( "open_ice_781c_r1.2a.u54", 0x00000, 0x80000, CRC(63296053) SHA1(9f6fcb1f95a09165c211b569001563b56d06876c) ) /* hand written as  781C  R1.21 - game reports as Revision 1.2A */
@@ -1222,6 +1222,37 @@ ROM_START( rmpgwt11 )
 ROM_END
 
 
+/*
+A PCB with V1.3 program ROMs was seen with different styled labels:
+
+U2  WRESTLEMANIA 5/17/95  5D00 - crossed out and hand written 6-6-95 5500
+U3  WRESTLEMANIA 5/2/95  8300
+U4  WRESTLEMANIA 5/2/95  0F00
+U5  WRESTLEMANIA 5/2/95  3000
+
+U54 WRESTLEMANIA Rev1.3 8/9/95 8A5D
+U63 WRESTLEMANIA Rev1.3 8/9/95 9EFE
+
+2M.0  U133  WRESTLEMANIA REV1.0 6/5/95  3A18
+2M.1  U132  WRESTLEMANIA REV1.0 6/5/95  5B68
+2M.2  U131  WRESTLEMANIA REV1.0 6/5/95  A478
+2M.3  U130  WRESTLEMANIA REV1.0 6/5/95  E4EA
+
+4M.0  U129  WRESTLEMANIA REV1.0 6/5/95  0B0E
+4M.1  U128  WRESTLEMANIA REV1.0 6/5/95  E646
+4M.2  U127  WRESTLEMANIA REV1.0 6/5/95  74A7
+4M.3  U126  WRESTLEMANIA REV1.0 6/5/95  37FD
+
+6M.0  U125  WRESTLEMANIA REV1.0 6/5/95  5EF3
+6M.1  U124  WRESTLEMANIA REV1.0 6/5/95  8CD6
+6M.2  U123  WRESTLEMANIA REV1.0 6/5/95  70EC
+6M.3  U122  WRESTLEMANIA REV1.0 6/5/95  2B4E
+
+8M.0  U121  WRESTLEMANIA REV1.0 6/5/95  5E15
+8M.1  U120  WRESTLEMANIA REV1.0 6/5/95  0572
+8M.2  U119  WRESTLEMANIA REV1.0 6/5/95  7FD4
+8M.3  U118  WRESTLEMANIA REV1.0 6/5/95  E4F1
+*/
 ROM_START( wwfmania )
 	ROM_REGION16_LE( 0x800000, "dcs", ROMREGION_ERASEFF )   /* sound data */
 	ROM_LOAD16_BYTE( "wwf_music-spch_l1.u2", 0x000000, 0x100000, CRC(a9acb250) SHA1(c1a7773ffdb86dc2c1c90c220482ed6330fcbb55) ) /* These 4 are labeled as L1 */