Brass what is it.... Engraved...

[DirtyMike]

This was found in a Civil War camp. I thought maybe a weight but its engraved with the # 30 and it ways 42 grams.

 

[Breezie]

It looks like an apothocary weight. Here is a post I made about a weight I found:
http://forum.treasurenet.com/index.php/topic,283339.msg2026439.html#msg2026439
Breezie

 

[vayank54]

It could be an apothocary weight like Breezie said.

 

[SkyPirate]

Maybe it is used to find volume in a liquid.

Volume of a Frustum of a Cone​

[/u]A frustum may be formed from a cone with a circular base by cutting off the tip of the cone with a cut perpendicular to the height, forming a lower base and an upper base that are circular and parallel.

Let h be the height, R the radius of the lower base, and r the radius of the upper base. One picture of the frustrum is the following.


Given R, r, and h, find the volume of the frustum.

Use the formula below and your answer may be 30

Take a look at this site and look under button for "weights":

http://scalesandruralmuseum.com/Beam Scales.html

 

[IronSpike]

I'm thinking weight as well. I've found a similar looking brass, however can't see any numbers at the base like your 30. Cool find with nice patina

http://forum.treasurenet.com/index.php/topic,227592.0.html

 

[IronSpike]

This was found in a Civil War camp. I thought maybe a weight but its engraved with the # 30 and it ways 42 grams.

Civil War camp is interesting. I also found a 'similar' lead weight at the site the brass was found.

Both deep dug targets.

http://forum.treasurenet.com/index.php/topic,227596.0.html

 

[Breezie]

Cool find! . . . .the lead one looks 'mammy made.' Breezie