Here is a picture of a typical "star" variation Field Grade. This variation first appears in the 1929 catalogues, but may well have been in production earlier then the catalogues show. The boys at Fall Creek were a bit slow on updating some pictures in their catalogues -- the gun pictured on the order blank throughout the NID period is a Grade 7E Flues?!?!

This is a fully Turnbullized .410-bore --