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Sigma - Sigma - High Resolutio...

128×128 3675 1067

Sigma - scientific symbol - Hi...

1200×450 1118 369

Sigma - sigma - No Watermark P...

1200×450 1983 611

Sigma - Highly Rated PNG

471×505 5096 1027

Sigma - math symbol - Lossless...

579×337 1917 425

Sigma - lowercase - No Backgro...

258×418 4302 1166

Sigma - PNG

240×180 1944 424