Sent by astute reader A and this is good information for anyone…
http://www.lonelyplanet.com/news/2016/09/05/central-park-lampposts-secret-code/
each ornate lamppost has a unique number inscribed on the base of the pole that actually acts as a navigational tool for travellers and locals alike looking to find out where exactly in the park they are. The first two or three numbers in the code specify the closest cross street, while the last number indicates what side of town is nearby. Even numbers mean east side while odd numbers mean west side.
Read more: http://www.lonelyplanet.com/news/2016/09/05/central-park-lampposts-secret-code/#ixzz4KBSTnp2y
this ‘draft post’ got left behind but it is too good to let it die.