In Australia, for reasons not entirely clear, there is great affection for the apostrophe. This is demonstrated in roadside signage which includes apostrophes where no self respecting apostrophe would care to be. Missing apostrophes are somewhat rarer but see the example below.
Retired Seamens Home – sign seen at Wallaroo, Eyre Peninsula, South Australia, in front of a group of residential units. But is it the Home which has been retired or the Seamen who have retired?
An apostrophe before the second s in Seamens would have made this clear.
Source: Personal observation during a visit to Wallaroo, March 13, 2016