This month's featured gun is the Standard Arms Model G
As it is with the majority of my featured gun posts, I actually owned one of these rifles for a short time. It was a model G, chambered in .30 Remington (rimless 30-30 Win). The serial number was 5198, I was told this put its manufacture date around 1910, but there is no way to verify that.
Williams, David (1907, May 23rd) Iron Age, Vol 79, page 1615