Need some Info. Winchester No 12 Repeater Shell casing & 9mm Luger R-P ????

Found two shotgun shell casings and  a Luger 9mm  R-P in the small section of woods that is in a city park. I know the shells must be  old because the park is right  near blocks of city homes. All that is left of the woods is about 100 yards wide by about 2 blocks long. The two shells were with in about 2 feet of each other. I am not into guns and hunting so I have no idea from what years they go back to. . Some say in the " Finds of the day"  that they could be  from the very early 1900's. Hope the pic are clear enough. Appreciate all the info I get.  Shane

Anyone who posts shell casings or bullets really needs to take pics of the item from several angles.  There are any number of cartridges that are similar in appearance and only a slight difference in the shape or length, etc will make a complete difference in determining the time frame it was produced.  From these pics I can tell the first one is a Winchester Repeating Arms 12 guage shotgun shell. Winchester has used several headstamps over the years. The other is a Remington Peters 9mm pistol casing.  That's all I can tell for sure.  Monty

I looked the winchester headstamp up and it shows it was used from 1896 to 1938.

Anyone who posts shell casings or bullets really needs to take pics of the item from several angles.  There are any number of cartridges that are similar in appearance and only a slight difference in the shape or length, etc will make a complete difference in determining the time frame it was produced.  From these pics I can tell the first one is a Winchester Repeating Arms 12 guage shotgun shell. Winchester has used several headstamps over the years. The other is a Remington Peters 9mm pistol casing.  That's all I can tell for sure.  Monty

I looked the winchester headstamp up and it shows it was used from 1896 to 1938.

   Thanks Monty for the info. 

Here's some pics for comparison....
http://www.gunbroker.com/Auction/ViewItem.asp?Item=143896325

TiredIron