Damascus w Vent Rib questions....

[Twoatlow8]

No roll stamping on top of rib, it will be hand engraved. TPS lists aprox 407 vent ribs guns in all grades and gauges. There are some books missing from the mid to late 20's at the time vent ribs became widely available. Even so it is safe to say any original vent rib is rare, the fact that Damascus barrels were special order after vent ribs were introduced makes them very rare IMHO.

[Bill Murphy]

Knowing the serial number would help. The first vent ribs may have been installed on standard frames rather than flat top frames. Of course, a retrofitted vent rib barrel set doesn't detract from the value very much, if it was installed by Parker Brothers.