Sword canes

[Jim McDougall]

Unusual topic, and honestly had never thought much on it, but just realized this field might deserve some further attention. I have not been able to find any reference material specifically discussing these.

While there seems to be a great deal of attention to self defense using the walking stick, to the point that use of these was even taught in certain fencing schools from 19th-into 19th c. there does not seem to be the information on those which had the blade within.

Does anybody have information/interest in these? WAY esoteric!