I find hundreds of items mentioning "horn buttons" in the 18th-century newspapers, and I assume they are of cow horn, but I also find:
The Pennsylvania Gazette
October 21, 1731
PHILADELPHIA, Octob. 7. We hear from Hopewell in the Jerseys, that on the 4th past, two Bucks were observed fighting near the new Meeting House there; one of them extraordinary large, supposed to be a Roe buck; the other small and of the common sort. In company with them was a black Doe, who stood by to see the Engagement. The small Buck proved a full match for the great one, giving him many violent Punches in the Ribs, but in the height of the Battle, they fastened their Horns so strongly together, that they were not able with all their Strength to disengage; and in that condition they were taken. The Doe retreated into the Woods, but being pursued with several Beagle Hounds, she was take also alive, and they have put her and the large Buck into a boarded Pasture together, in hopes to have a Breed, if the Sizes are not too unsuitable. This is the second Brace of Bucks that have been caught by the Horns this Fall. Had they not better put 'em quietly in their Pockets?
The Pennsylvania Gazette
March 10, 1757
ANNAPOLIS, January 27.
Some time ago, in Hunting Time, a Man in Frederick County, having made himself a Jacket of the Skin of a Deer, with the Hair and Tail on, went out to hunt for Deer, and as he was creeping thro Bushes in pursuit of Prey, was seen by another Hunter, who taking him for a Deer, fired at him, and shot thro' the Skin, but happily did not kill. (It is not improbable but he might wear the Horns as well as the Tail.)
The Pennsylvania Gazette
March 4, 1755
Lately imported, and to be sold on the lowest terms, by GEORGE BRYAN,”¦ Stoughton drops, lavender water and drops, hartshorn and salvolatile drops, beautyfying water, and tooth powder;
They obviously used the term horn for antler, so how do we tell they aren't speaking of antler when they say horn buttons, horn ramrod tips, horn handled case and penknives , etc.? :grin:
Spence