Monday 10 July 2023

Update to Sketch Map!

 

Orkney Archive Reference D2/7/3 - Undated sketch chart for soundings at Stromness Harbour 

UPDATE:


We've had some thoughts about the above map sent in by an instagram follower:



Compare it to Murdoch MacKenzie’s map  of Pomona or main-land dated at 1750 – by the NLS  (https://maps.nls.uk/coasts/chart/4143)

Date: 1750.  

 


 

 And Greenvile Collins and  Herman Moll The Islands of Orkney   1693? https://maps.nls.uk/coasts/chart/182

 


 

Look at the depth markings – they are pretty much identical for the MacKenzie map but deeper than the Collins and Moll. Also,  the shading (for shallows, I guess) off the northeast tip of Graemsay is identical.

 

So at a guess, your new old map is either drawn from the Murdoch map or is something that Murdoch used – i.e. c. 1750 maybe a few years earlier?