Results map of the 4th Amendment in New Jersey's 1927 referendums on constitutional amendments. Results from https://nj.gov/state/elections/assets/pdf/election-results/1920-1970//1927-primary-election.pdf, shapes modified from File:New Jersey county map, cb 500k.svg with Notepad++.
Legend: 
Support

  90%–100%  80%–90%  70%–80%  60%–70%  50%–60%
Tie

  Exact tie
Oppose

  50%–60%  60%–70%  70%–80%  80%–90%  90%–100%
Own work
Twotwofourtysix