I agree this early print has some of the attributes we associate with McCosh, especially the distinctive trimming of the corners and black borders. But before we jump to a conclusion, have you looked at the album of his work at the National Army M...
Roger, Thank you so much for looking into Captain Sweet for me (at Mike Ware's request). If it's helpful, Sweet's background is available at captainsweet.com.au . He was an amateur when he left England for Australia in 1863. The only work of his I would really expect to have found its way into public collections are ther albums of views he sent to world fairs and perhaps his images of Aborigines. If you do come accross him I'd be delighted! Thanks. Karen