I was chatting over coffee this morning to a guitar playing friend - mid-practice - and we were discussing string gauges on the several instruments he has (Weissenborn, Dobro, dreadnought guitar, mid-jumbo guitar, etc.). The conversation turned on 1920s and 1930s guitars and we fell to wondering: what choices of guitar strings were available to the guitarist in those days? We have a huge choice of makes and styles and gauges today - but what choice did our grandfathers have 80-90 years ago?

We didn't know - anyone have any insights?