Front
Method
Border
Left / Right
53.5 / 46.5
Top / Bottom
59.7 / 40.3
Yaw
−0.08° CCW
Corner Readings · Millimeters
Top Left
X 2.70 · Y 3.90
Top Right
X 2.30 · Y 3.50
Bottom Left
X 2.70 · Y 2.50
Bottom Right
X 2.40 · Y 2.50
Official Grading Record
2021 · Evolving Skies
Condition Profile
RBH Grading Standard
Centering
9.0
Corners
10.0
Edges
10.0
Surface
10.0
Supporting Documentation
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Released Grading Record
Border mode calculates centering and yaw from the recorded corner-border measurements. Landmark mode calculates LR/TB from direct design-landmark distances and records yaw independently when a reliable horizontal or vertical reference is available.
Dimensional measurements are recorded manually in millimeters and are subject to an approximate ±0.1 mm measurement uncertainty. Clockwise yaw is positive (+); counterclockwise yaw is negative (−). “Not measured” means no reliable yaw reference was available.
Method
Border
Left / Right
53.5 / 46.5
Top / Bottom
59.7 / 40.3
Yaw
−0.08° CCW
Corner Readings · Millimeters
Top Left
X 2.70 · Y 3.90
Top Right
X 2.30 · Y 3.50
Bottom Left
X 2.70 · Y 2.50
Bottom Right
X 2.40 · Y 2.50
Method
Border
Left / Right
43.4 / 56.6
Top / Bottom
51.8 / 48.2
Yaw
+0.15° CW
Corner Readings · Millimeters
Top Left
X 3.20 · Y 3.50
Top Right
X 4.10 · Y 3.80
Bottom Left
X 3.10 · Y 3.50
Bottom Right
X 4.10 · Y 3.30
Where dimensional measurements are shown, values are recorded manually in millimeters and are subject to an approximate ±0.1 mm measurement uncertainty.
Where dimensional measurements are shown, values are recorded manually in millimeters and are subject to an approximate ±0.1 mm measurement uncertainty.
Documented corner, edge, and surface conditions associated with this grade.
Where dimensional measurements are shown, values are recorded manually in millimeters and are subject to an approximate ±0.1 mm measurement uncertainty.
1 Blemish
Blemish 01 · Surface
Rear · A1, B1, C1, D1
Trace Micro-scratchCertified
September 22, 2026
Record Revision
1
This digital record is tied to the exact eight-digit certification number printed on the RBH label. RBH does not expose customer information, grader notes, or private scoring weights in the public registry.