i know they were made in the 70's
0.75 caliber smooth bore black powder flintlock muskets.Musket bayonets.Kentucky hunting black powder flintlock rifles.Various knives.Tomahawks.Sailing warships.Cannons.etc.
100-300 USD
$850-$1,995
The musket of choice was the .69 Caliber, model 1766 Charleville flintlock musket which represented the State of the Art in military firearms. The US Model 1795 musket was a direct knock-off of the French weapon with production of about 150,000 weapons produced at Springfield and at Harpers Ferry.
Perhaps the most common was the French Charleville flintlock musket in .69 caliber.
$400-$450
Impossible to answer with the information you have provided. Sort of like "How much is a V-8 car and how old is it?"
If there are no markings on it you will never know.
.58 caliber Springfield musket .69 caliber Harpers Ferry Rifle '''Spencer carbine '''Henry repeating rifle '''Colt revolver '''Remington '''English Enfield rifle ''''''''''''''''''
No way to do it without a detailed description of ALL markings, caliber and pictures.
The gun that killed President Lincoln is a .44 caliber, singe-shot flintlock pistol, which is about 6 inches in length.
The price of a .45 caliber long gun flintlock can vary widely depending on its condition, maker, and historical significance, typically ranging from a few hundred to several thousand dollars. The number "7684" could refer to a serial number or model number, but without additional context, it's difficult to determine the exact age or value of the firearm. Flintlock guns were commonly used from the 17th to the early 19th centuries, so if this gun is a flintlock, it could be over 100 years old. For precise information, consulting an expert or appraiser would be advisable.