Maybe not a scam, but very inaccurate.
That listing is not an English, but a Crane duet.
I count 35 buttons, not 34, and that's the fewest-button standard model for the Crane.
It definitely doesn't date to 1860, since the Crane duet wasn't invented until much later (patent 1896).
If that #16218 is suposed to be a serial number, it's way too high. Too many digits. At Lachenal, the anglo, English, and duets had separate runs of serial numbers, and the duets never reached 6000. If the real serial number is 16xx, then I guess it would be from around 1900.
If that's your listing, I suggest you correct it. Then good luck on the sale.
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