USA Antique Status is not the same as ours they get and extra year being all of 1898.
our cut off is Dec 31st 1897 the USA cut off is dec 31st 1898.
I think your in a gray area Starpuss useing the Fact a American said its Antique and it got thru customs wont save you.
You dont Need a RCMP Letter but you better be able to prove its pre 1898.
The Ser # on the Bottom of the grip is the only way to date theses 1892s.
The fact the Ser # is Worn off might give you a break there is ways "they" can read that Number.
Its not Ground off on purpose just worn.
Try takeing pics of the Butt at diffrent angles sometimes you will be surprised what the Camra can show up.
Yes I tried the cam trick and well my cam sucks! i have 26 pic's witch all look bad like this one. The gun had a thick colt of nickel covering the s/n and under the nickel was rust.
ill try takeing some new pic's now that i can use a diff cam to see what i can make out.


















































