I received a personal inquiry regarding the use of straps.
I think it was from Nicholas Bechtel but could be wrong as I don't understand this technology well enough to respond quickly and then it was gone. Perhaps he saw a photo of me and detected that I had a rope attached to my banjo. 'Tis true. I don't know if this was done in the mid-19th C but I did so for a particular event where I would not have the opportunity to sit and it has remained on ever since.
This raises a valid question, however. Were straps, indeed, used in the 19th C?
If so, what were they like?
This gentleman has one, a simple cord of some kind.