I am a contributing editor for the Parker section. The prices listed are for purely factory original guns and the percentages relate to the amount of original case color remaining. It is critical to read the prologue to the Parker section for the pricing to be in any way accurate or relative.

In the end the selling price for anything is what a particular buyer is willing to pay.

Thanks for your thoughts guys. I clearly understand that condition, originality, and rare or desirable guns are what drives prices.
I can usually figure out what a fair price is on most guns but It’s two very high condition and very desirable Parkers I am have trouble with.
I think a call to Josh might help me out.

Josh, my friend, thank you for helping me to clarify the case color relationship to condition percentage. As I said before, read the fine print on the Parker section of the Blue Book.

IMO:
The best use for the blue book pricing is for establishing a ball park evaluation for insurance purposes.

Other than that, it can be way off current market pricing. Especially in the world we've lived in lately.

The market for Parkers, just like that for oil, gold, real estate, cars, etc, changes daily. It's all about supply and demand. In the last 18 months, demand has picked up dramatically and there are a lot of newer buyers who want quality American doubles.

Parker Values … Blue Book
 

FYI.. I am also a contributor of the Parker Section on values. As relayed by Josh
several factors are considered when establishing values. Originality, condition, case color, rarity, gauge, supply and demand, etc. Values established are for ALL original guns that have not been restored in any fashion partially or completely. They are becoming more difficult to find and bring a premium accordingly. In some instances the values for 20’s, 28’s and .410’s are below going sales prices. Twelves are somewhat sluggish in the market place at this time unless they are all original high condition and may possibly represent some “Best Buys”! 😊