Micro #48

Micro #48-1 (tartaric acid).
Micro #48-2 (tartaric acid).
Micro #48-3 (tartaric acid).
Micro #48-4 (tartaric acid).
Micro #48-5 (tartaric acid).
Micro #48-6 (tartaric acid).
Micro #48-7 (tartaric acid).
Micro #48-8 (hydroquinone).
Micro #48-9 (hydroquinone).
Micro #48-10 (hydroquinone).