Specification details are available on the Clydebuilt site.  Details of its career can be found on this great site about puffers here which tells us that it was built for the Leith, Hull and Hamburg Steam Packet Co. and would have worked to ship "cargo along the Monklands and Forth and Clyde Canals between Port Dundas in Glasgow and the ports on the Firth of Forth".

When I first scanned in this image I thought that it couldn't have actually been called X and that it  had been labelled as such because the name was unknown.  I was wrong and that was its name!

This image is also the last of the batch of prints from the Dan McDonald collection so from next month I'll be scanning a different batch of photos or items for the blog.