59850 is a postalcode and its consensus geometry is derived from frgov.
{"mz:is_ceased":0,"geom:latitude":50.699299,"wof:name":"59850","counts:names_total":0,"wof:placetype":"postalcode","frgov:DEP":"59","frgov:ID":"59850","frgov:_COL6":3018,"mz:is_approximate":1,"wof:hierarchy":[{"continent_id":102191581,"country_id":85633147,"county_id":102065195,"empire_id":136253037,"localadmin_id":404369499,"locality_id":101839679,"macrocounty_id":404228245,"macroregion_id":1108826399,"postalcode_id":421304703,"region_id":85683445}],"mz:is_deprecated":0,"frgov:SURF":17.468287,"geom:area":0.002231,"geom:longitude":2.832473,"wof:id":421304703,"frgov:LIB":"Nieppe","counts:concordances_total":1,"geom:type":"MultiPolygon","wof:lastmodified":1496505595,"wof:belongsto":[85683445,102191581,404228245,404369499,85633147,1108826399,101839679,136253037,102065195],"wof:concordances":{"gp:id":"12726169"},"wof:repo":"whosonfirst-data-postalcode-fr","src:geom":"frgov","wof:country":"FR","counts:names_preferred":0,"frgov:POP2010":7587,"gp:parent_id":"12667611","geom:area_square_m":1.7469287177571E7,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"FR","counts:names_languages":0,"geom:bbox":"2.79544490494,50.6707554678,2.87017312163,50.7217604329","wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"8764de6c62d56c386ca63083dc273773","wof:parent_id":101839679,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu"}