Despite the marking, you have a shotgun. Not worth more than 150 USD if that.
It depends on it's condition, who used it, and model.
There is no way you could have a Model 1904 made in 1894, but you COULD have a Model 1894 made in 1904.
Your gun was manufactured in 1904.
Now, in 2009, your 1904 Singer sewing machine would be 105 years old.
Value is for parts only. Try e-gunparts.com
The Sculptor's Jealous Model - 1904 was released on: UK: August 1904 USA: October 1904
Your rifle was made in 1904. Value will be driven by condition- you will need a hands-on appraisal.
The Winchester Model 1904-A was introduced in 1927 and discontinued in 1931. Value is entirely dependent on condition, maxing out around $400 for near perfect.
Impossible to answer without a detailed description including the model, caliber, box, papers, accessories, etc..
Depending on exact condition, the Model 1904 and its variants sell in the $150-$300 range.
No way to determine value without a detailed description of all features and overall condition.
Looking at Winchester models, there is nothing listed for a Model 90 with serial number 298032. They have Model 1890 in a slide action, Model 1900, 1902, and 1904 in a bolt action rifle.