Smokey,
Re copper wire, Colonel Hawker wrote his first edition in I believe 1816, and my copy is the reprinted 7th edition of 1833.
I do not know if the copper wire was mentioned in the first edition or not.
Here is what he says, regarding the shooting waistcoat, Page 129 on "The Shooter's dress", ;
".....................A small side-pocket above the left breast is handy for wadding, (Indeed it is!) which may be got at with forefinger and thumb without taking off your glove; as (by the way)keeping the hands warm in frosty weather is a matter of necessity in shooting.
I shall recommend a little bit of COPPER WIRE fastened either to the lower button, or to the shot belt, which is always ready as a gunpicker; will never rust, will not injure the platina of the touchhole; and, if you fall, will bend, instead of running into you.
This, if bent to a right angle, does very well too for a probe for the nipples of detonators".
The "copper wire" in capitals is mine to make it show up.
Earlier in the book, he does say a stiff feather cut short makes a very good probe for the. touchhole.
Best,
Meself.
Smokin buck, LOL!