25 to 30 dollars The first answer it only partially correct. Depending on exact configuration and condition; 0 to multiple thousands of USD.
how much is a 1851 colt navy 36 gun
If you call Colt they will tell you when it was made.
0-750 USD
10-175 usd
50-275 usd
100-1000 or so depending on specifics
my sister called me tonight and her husbands father was handed down this beutiful pistol i live 600 miles away she has no internet they would like to know how much it is worth there are markings that we can not figure it out may 16 1843 it also has this sequence of numbers A8445 also has this sequence PRFIE -ITALY IF YOU COULD PLEASE ENLIGHTEN US I WOULD GREATLY APPRECIATE IT If it says F. lli Pieta it is a replica,the gun is a colt 1851 navy, the battle on there is the battle of compeche between the Mexican and Texas navy. Cabelas sells them for about $350.00 bucks. if it is an original 1851 made by colt it is worth a lot more. you can find out all you need pluss get a user manual for your replica at pietta.it (it's "it" for Italy not .com)
1-1000 USD depending on exact configuration, overall condition and accessories.
Condition is everything. This sounds like it could be a 1911 Colt government model but serial number don't tell you everything. If it is a 1911 Colt GI pistol (that could have been made in 1917) it could be worth as much as $2000 in excellent condition to as little as $300 in poor condition. Take it to a reputable gunshop, pawn dealer or gunsmith and have them give you a better idea as to worth.
50-800 usd
1851 seven on top of eight miss print big penny how much is it wroth
Colt has not offered a AR15 in 308