diff --git a/interim/source_strings.yaml b/interim/source_strings.yaml
index ce806170..846144d9 100644
--- a/interim/source_strings.yaml
+++ b/interim/source_strings.yaml
@@ -3572,6 +3572,16 @@ en:
       post:
         # post:block_number=*, post:city=*, post:block_number=*, post:conscriptionnumber=*, post:county=*, post:country=*, post:county=*, post:district=*, post:floor=*, post:hamlet=*, post:housename=*, post:housenumber=*, post:neighbourhood=*, post:place=*, post:postcode=*, post:province=*, post:quarter=*, post:state=*, post:street=*, post:subdistrict=*, post:suburb=*, post:unit=*
         label: Delivery Address
+      post_box/type:
+        # post_box:type=*
+        label: Type
+        options:
+          # post_box:type=lamp
+          lamp: Lamp
+          # post_box:type=pillar
+          pillar: Pillar
+          # post_box:type=wall
+          wall: Wall
       power:
         # power=*
         label: Type
@@ -3873,6 +3883,28 @@ en:
       route_master:
         # route_master=*
         label: Type
+      royal_cypher:
+        # royal_cypher=*
+        label: Royal Cypher
+        options:
+          # royal_cypher=CIIIR
+          CIIIR: CIIIR (Charles III)
+          # royal_cypher=EIIR
+          EIIR: EIIR (Elizabeth II)
+          # royal_cypher=EVIIIR
+          EVIIIR: EVIIIR (Edward VIII)
+          # royal_cypher=EVIIR
+          EVIIR: EVIIR (Edward VII)
+          # royal_cypher=GR
+          GR: GR (George V)
+          # royal_cypher=GVIR
+          GVIR: GVIR (George VI)
+          # royal_cypher=VR
+          VR: VR (Victoria)
+          # royal_cypher=no
+          'no': 'No'
+          # royal_cypher=scottish_crown
+          scottish_crown: Scottish Crown
       ruins:
         # ruins=*
         label: Type
@@ -6180,6 +6212,8 @@ en:
         name: Mail Drop Box
         # 'terms: drop box,dropbox,letter drop,mail box,mail collection box,mail drop,mail dropoff,mailbox,package drop,pillar box,pillarbox,post box,postal box,postbox'
         terms: <translate with synonyms or related terms for 'Mail Drop Box', separated by commas>
+      amenity/post_box/post_box-GB:
+        # amenity=post_box | Translate the primary name. Optionally, add equivalent synonyms on newlines in order of preference (press the Return key).
       amenity/post_depot:
         # amenity=post_depot | Translate the primary name. Optionally, add equivalent synonyms on newlines in order of preference (press the Return key).
         name: Post Sorting Office