This Glen Sannox is one of three we have pictures of and was built by William Denny & Brothers Dumbarton in 1925.

Glen Sannox

Originally uploaded by ballasttrust

Specification details are available from clydebuilt database here.

The other Glen Sannox ships are a 1957 one built by Ailsa Shipbuilders and a 1892 one by J & G Thompson.