Etched police bayonet

[PeterM7]

And I would again make the point Staghorn grips can be 80 years old and still have white coloration on the cut edges. Yellowing depends on exposure to sunlight, and possibly oils and even nicotine.
Let me give an example. The so called "Luftwaffe Forestry Knife" made by Waffen-Loesche is widely accepted as Third Reich made, perhaps late 1930's or early 1940's. Yet despite being made about 80 years ago with staghorn grips, it's not unusual to find examples with pearly white, non-yellowed grip plates. Yet I've never heard anyone suggest the grip plate were swapped "20 or 30 years ago". The answer is simply these knives didn't spend much time in sunlight. So yellowing of staghorn is a poor way to date staghorn grips plates. The same can be found in pocket knives.

[Ron Weinand]

Well known fake

[AndyB]

Prior this time i had good experience to estimate a time period on hirschhorn grips, even rough , friend is a hunter with various horn material and i have 4 geweihe in my room, older as 100 years. After made a sawing area the material is going oxidating so its exposure on sunglights its earlier the process continuing as hidden from sunlight, i believe a 80 years old cuts are not white in color same as is here on the right grip visible. b.r.Andy.