Agfa/Ansco 73

Very high contrast film developer

Water 125F/52C750ml
Metol5g
Sodium Sulfite (anhydrous)40g
Hydroquinone6g
Sodium Carbonate (monohydrate*)40g
Potassium Bromide6g
Cold water to make1000ml
Mixing Instructions: Add chemicals in specified sequence.
Dilution: Use undiluted.
Usage: Starting point dev time: 2-3 mins.

Notes 

*multiply amount by 0.833 if using Sodium Carbonate in anhydrous form.

See Agfa/Ansco 90 for variant.