Based on old forks I've seen excavated that look like that from old forts out here in the western US. I'm thinking the last quarter 19th century, but it could very well be older and with in the 3rd quarter of the 19th century. Thats just my guess.
Surf,
That makes more sense, especially since the hole is also not slotted as in a utensil pack--though those other memories persist.
Don.......
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