BIDDING ON 3 Vintage Blackhawk Sockets 1/2", 9/16" & 13/16" SPARK PLUG ONLY. 
ALL 3/8" DRIVE
ALL 6-POINT

ALL USED, SOME TARNISH/FINISH LOSS, SURFACE RUST.
NO PREVIOUS OWNERS ID MARKINGS

INCLUDES:
1.   No. 30616   1/2"   USA,  SHALLOW SOCKET 
2.   No. 30618   9/16"   USA,   SHALLOW SOCKET
3.   No. HW1526S   13/16"   USA. STAMPED: FOR SPARK PLUG USE ONLY. HAS RUBBER INSERT

SEE ALL PICS FOR DETAIL AND CONDITION