Spark Plugs - $10 (NE Polk County)

Found when cleaning.
The plug numbers have been changed to a new number, but I don’t have the cross reference number.
Prices as listed OBO.
1 new plug: Champion H-10 $5.
00 4 new plugs: Champion RBN12Y (replaced RZN12Y) $5.
00 each 2 new plugs Champion RF-9Y Box states: Especially Engineered for Ford Motor Co.
Vehicles $5.
00 each 2 New Champion RN12YC Copper Plus Resistor $10 each