diff --git a/datatypes/epc/domain/mapper.py b/datatypes/epc/domain/mapper.py
index a699be4e..380192d3 100644
--- a/datatypes/epc/domain/mapper.py
+++ b/datatypes/epc/domain/mapper.py
@@ -6942,6 +6942,12 @@ _ELMHURST_GLAZING_LABEL_TO_SAP10: Dict[str, int] = {
     "Single glazing": 1,
     "Double pre 2002": 2,
     "Double between 2002 and 2021": 3,
+    # Year-truncated form of "Double between 2002 and 2021": the trailing
+    # "and 2021" wraps to an adjacent PDF table cell that the extractor
+    # joins away (same artifact as "Triple post or during" below). Same
+    # SAP 10.2 code 3 (DG 2002-2021) — surfaced on the simulated-case-46
+    # multi-attribute worksheet.
+    "Double between 2002": 3,
     "Double with unknown install date": 3,
     "Double with unknown 16 mm or install date more": 3,
     # Elmhurst §11 lodgement of RdSAP-21 schema row 7 "double, known
diff --git a/tests/datatypes/epc/domain/test_mapper_glazing_label.py b/tests/datatypes/epc/domain/test_mapper_glazing_label.py
new file mode 100644
index 00000000..8430d76e
--- /dev/null
+++ b/tests/datatypes/epc/domain/test_mapper_glazing_label.py
@@ -0,0 +1,26 @@
+"""Mapper boundary: the Elmhurst §11 "Double between 2002" glazing label.
+
+The full RdSAP-Schema-21 label is "Double between 2002 and 2021" (SAP 10.2
+Table 24 code 3 — double glazing installed 2002-2021). When the Elmhurst
+Summary PDF wraps the trailing "and 2021" into an adjacent table cell the
+extractor joins away, the surfaced label truncates to "Double between 2002"
+(the same artifact already handled for "Triple post or during"). Before this
+was mapped the truncated form raised `UnmappedElmhurstLabel`, blocking the
+whole Summary (surfaced on the simulated-case-46 multi-attribute worksheet).
+"""
+
+from datatypes.epc.domain.mapper import (
+    _elmhurst_glazing_type_code,  # pyright: ignore[reportPrivateUsage]
+)
+
+
+def test_truncated_double_between_2002_maps_to_code_3() -> None:
+    # Arrange — the year-truncated form of "Double between 2002 and 2021".
+
+    # Act
+    code = _elmhurst_glazing_type_code("Double between 2002")
+    full = _elmhurst_glazing_type_code("Double between 2002 and 2021")
+
+    # Assert — both resolve to SAP 10.2 Table 24 code 3 (DG 2002-2021).
+    assert code == 3
+    assert full == 3