Small or Large bolt pattern?

Maybe neither SBP or LBP. From the tape measure, they look like a 4.25" bolt pattern. If you think Mopar, you think 4" or 4.5". My friend Google has pointed out many cars (mostly Ford products and some AMC) had 4.25" wheels. Your wheels were probably not made for a Mopar -- unless it was a 1990-1992 Dodge Monaco.