Mixed bag-silver, artifacts, buttons, buckle, jewelry, gun parts

[Turtleman]

Folks,
I was out of town today near a large city and stopped at a park that was founded over 100 years ago. I hunted most of the time in a wooded section of the park between the turf and the older housing development above it. The terrain was quite sloped. The woods is littered with everything imaginable and then some.
Here's what I could find: first 'S' war nickel (silver) on the East Coast (found in turf); some metal buttons (anyone know how old they are; no writing or marking of any kind), all four were within a foot of each other; a trigger and bullet (I assume the trigger is from a toy gun/pistol; the only words on the piece say 'oil here'; also, anyone know what type of pistol/gun the bullet casing is from?); a heart-shaped piece of jewelry (says '20012K' or '20012N' or something)-found in turf; it's missing a stone and the piece that holds the stone is corroded (zinc?) but the rest could pass for silver and it looks to be gold plated in areas...any help on the mark would be appreciated; a small dish type piece made of iron...it has 8 divots around the inside of the lip (like some cigarette trays), a hole on one side and as small tab on the other...the center inside is raised slightly and is the diameter of a U.S. quarter; there is an inscription or symbol in large print on the bottom (outside of the dish but I can't read it); I hope this isn't drug related...any thoughts. Is the one piece a buckle? And how old do you think the pulltab is in the same photo? I also picked up some pottery fragments and other misc. pieces. I think I have Coke and Pepsi caps from every decade since they came out with the large twist top bottle caps.
Lastly, after I got near home, I was finishing up some work in my vehicle in the neighboring town and a man pulls up, sees my detectors in my vehicle and says, "I've found religious medallions and 1800's coins in the alley behind my house. If you ever want to detect it or my yard you can and it's all yours, whatever you find." This area saw action even in the 1700's so I am going to be heading out there sometime soon.
Now for the pictures...
T-man

 

[Turtleman]

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[Sofaman36]

Those "buttons" are called hem weights.

 

[Turtleman]

Sofaman,
Thanks for the info. Can you tell me anything more about the hem weights (era, what their exact purpose was, etc.). Mine are about 1/16"-1/8" thick in the middle and round out at the edges to no thickness.
T-man

 

[Darshevo]

Nice finds, a good collection of items for your day.

On the shell casing the 38 indicates its a .38 caliber. The S & W indicates Smith and Wesson

-Lance

 

[kuger]

I am not positive exactly what the time frame is for the hem weight was but I always seem to find them in in early 20 th Cen. Sites
They were hemmed into womens dresses to keep them down.....from blowing up

 

[ron_c]

The thingie next to the jewelry looks to me like a kids toy spur rowell as these were usually broke off from the main part from use.

 

[Sofaman36]

Well, it depends on the time frame of the place you found them. They date back to early 19th century and go all the way to mid 20th century. But they were put in woman's dresses to weigh them down and keep the dress from flying around everywhere.

 

[NHBandit]

.38 S&W was popular in the late 1800s to early 1900s in the old top break revolvers that were loaded by breaking them open like a shotgun. When the .38 Special came onto the scene it made that caliber pretty much obsolete although it is still sold for the older guns.