To try to take this a bit Further some interesting Comments have come to light over on the WACA Forum site.
Solidifying what GunGeek and a few others have suggested as in the 13th edition of Cartridges of the World publication in 2012 on page 146 states under the .44 Center Fire Flat Cartridge that 1,020 Winchester Model 1866's were shipped to Brazil in 1891!
According to the WACA Forum site Serial number search the Earliest Serial number mfg. in 1891 would be serial # 167865 of a Total number of #170,101 Winchester Model 1866 Produced
with the last being mfg. in 1899! Hence the later serial numbers previously mentioned.
Further research is being conducted to establish the information printed in the 13th Ed. of C.O.T.W.(2012) A very good substantial Cartridge Publication based on Facts.
At this point there's no reason to believe this information is not true as I'm sure more will come to light substantiated this advanced knowledge.

HS 58

Last edited by HunterShooter58; 04/09/23.

I Learned a long time ago to Separate My Want's from My Needs!

A man's Gotta Do What a Man's Gotta Do!

Know Thy Self!

TRUMP DID WIN!!!