I would recommend contacting these folks and finding out if they are authentic. Scotts Valley Historical Society or
http://www2.santacruzpl.org/cid/public/full.php?id=795On their site it is referred to "At the Scotts Valley Station the additional horses were left and the stage ... Lincoln decided that he did not want to run the line and gave it back to McKiernan"
http://webcache.googleusercontent.com/search?q=cache:M7QwAshAne8J:scplweb.santacruzpl .org/history/trans/stagec2.shtml+&cd=2&hl=en&ct=clnk&gl=us&client=firefox-aMaybe Talesof can lend some more light on this, but the town is Scotts Valley (with an S - named after Hiram Scott) and from what I gather has always had the s on it. There were many stagecoach lines that came through that area. Authentication may be required - on the other hand it would cost a bit and most likely more than the tickets themselves are worth.
Very familiar with the area and some of the history there. (Used to own a family cabin near there.) I would normally be skeptical about the look/condition of the tickets as well ghopper1924 but when we cleaned out my in-laws attic in that area - most of the family items from the 1800's were pristine with the weather conditions there.
On the other hand....there has been alot of fanfare and reenactments over the years - especially with the western craze of Gunsmoke, The Big Valley, etc in the 60's that resulted in alot of reproductions. Amusements sprung up all over the US with western attractions (EX: 6 Gun Territory) and with the filming of most westerns in California...the western craze was in full swing. In fact, this was the home of Santas Village - have tons of pictures of this during the years it was open in Scotts Valley.
Also, the US Census should have information as to whether or not G J Scharlack was around.