Your question can not be answered with the slight info that you have provided.Please include all the info you can about your revolver to include maker,barrel length,caliber,finish,etc.and include all markings.
100-200 USD
50-200
They are impractical and we have a much better system now. Also Roman numbers are not infinite.
On converting between Arabic and Roman Numbers: M IN ROMAN NUMERALS is written as 1000.
A U.S. revolver from the civil war can go for as much as $2000
Not much.
$16 in 1939
The Romans established a navy with the new tactics of boarding rather than ramming, and so captured Phoenician ships in battle. The corvus (raven beak) boarding plank had a spike which both locked the ships together and allowed the Roman infantry to board and capture. This was adopted because the Romans, who did not have a navy to speak of at the beginning of the First Punic War, built a fleet from scratch. The Roman sailors did not have enough experience to perform the complicated manoeuvre required to ram the enemy ships. The corvus made up for this and brought success in battle. However, it had the drawback of making the ships top heavy. Many ships sank in storms and the Romans lost thousands of lives. The corvus was dropped in the last battle of the war and the Roman fleet won. The Roman navy had come of age. The corvus was never used again. The Roman navy improved so much that in the Second Punic War, the Roman navy was superior to the Carthaginian one even without the corvus.
Converted to Arabic notation (which pretty much everyone uses nowadays), it's 1009.
nothing really not much navy at all
f24 USD or so
$16 in 1939