[sheepherder]

I'm looking at two carbine forearm tangs; they are quite different...

Should I ever come across one (or both) of these, exactly what are they indicative of???

Are there other types of carbine tangs??? Were these 'custom' conversions, with a variety of different tangs???

I've already see several different forends [wood]...

Was there a master pattern??? More than one manufacturer/shop making them???