Your machine cancel was made by a machine sold by the Columbia Postal Supply Company of Silver Creek, New York. The machines made by this company generate a wide variety of markings. In this case, the postmark is made up of a series of parallel lines of text, while the cancel (killer) is a set of wavy lines.
Here is a picture of a straight-line postmark wavy-killer Columbia machine impression [15k GIF].
There is a bit more information available about these machines on my Machine Web page.
**** If you can read this text, your browser is not supporting Cascading Style Sheets (CSS). You may be running a text-only browser, or perhaps an older browser version. It is also possible that you are have disabled Javascript (Netscape). If you wish to see this page with all formatting in place, upgrade your browser, and/or enable Javascript. Sorry for the inconvenience.
![a straight-line postmark wavy-killer Columbia machine impression [15k GIF]](./machines/columbia_st_wavy.gif){kind=link}