Powder Flask - real or repro?

Reproduction Colt's Patent Stand of Flags and Cannon Powder, Lot #40570

REAL NICE REPRODUCTION COLT PATENT COPPER & BRASS GUN POWDER FLASK, WORKS GREAT

How were powder flask bodies made in the 1800's ?

Real or fake gun powder flask?

Vtg US Military Black Powder Flask Peace Eagle Handshake Shield

Reproduction 17Th Century Powder Flask

Interpretation Abrasive mimic antique powder flask identification

Sold at Auction: A PROBABLE VICTORIAN ERA 17TH CENTURY POWDER

What Flask Do I have? A Fake or Repro or the real thing?