Kuduae, Thank you for sharing the photo of your fine looking rifle. Many of you may know that I am in the process of building a 1896 Steyr as a takedown, and have been documenting the project over on the DoubleGun forum. My intention is to have my rifle look very much like the one Kuduae has shared.
I would very much like to see more detailed pictures of your rifle. Especially, taken down with closeups of the attachment system.

On a slightly different note I see the differences between your rifle and the rifle pictured in the advertisement you also shared. The big one being your rifle requires the barrel to be full unscrewed from the action (I believe) while the one in the ad is the quarter turn lock system. Yours as you say is a model 1903, do you know what year your rifle was built? And do you have an aprox date for the advertisement you have shown?

If possible please share more pictures of your great rifle. Thanks!