I found today at an estate sale a Ithaca Grade 9 Flues? in 28ga. that looks to me as an unfired gun. No blue on tip of barrels missing, 100% case color, inside bores sparkley clean, no wear on trigger guard, no wear anywhere, stock emaculate (in my openion). All things considered equal what percentage of value over a lesser grade and different gauge would the grade 9 and 28ga. be. I don't intend to sell them but shoot some and show the rest.