[Researcher]

The PH-Grade was for many years the $65 list price gun in 12-gauge and smaller. In 10-gauge it was the NH-Grade and listed at $70. The catalogs state that AH- to PH-grades could be had in 8-gauge for $35 above 10-gauge list.

Quality P.H. Blue Ink Catalog.jpeg

Quality N.H. Blue Ink Catalog.jpg