OMG 😮 Found the old school maps in completed listings, some of the prices they sold for are more than I expected. The map I have was first printed in London in 1870 & was last reprinted in I think 1928? The survey of the east coast of Queensland was conducted under Captain G.H. Richards http://garylittle.ca/maps-historic/richards.html This is what info I found on him & one of the men in the photo with him did the navigating for the map. Even with the condition of the map it still might be worth a bit? 🙂 The original cost of the map was 4 shillings, probably a lot of money then.