Not sure of era, but very collectable.
Antique Copper Gunpowder Flask Victorian, great patina Militaria History.
Antique Victorian Copper Brass Gunpowder Flask Hunting Shooting Flask C1880
Victorian Sykes Copper & Brass Gunpowder Flask Shot Flask Antique c1880
Antique Civil War period Copper & Brass Military Gunpowder Flask USA
Antique Copper Brass Gunpowder Flask Lovely Patina Embossed Detailing
Antique Ottoman Brass Gunpowder Flask Possibly Used In WW1 Or Earlier
