Photographers' Formulary Glass Graduate - 50ml Tweet Description The Photographer's Formulary 50ml Graduate is a quality heat-treated glass-graduate cylinder for measuring and mixing solutions and powders. This graduate has scale graduations in milliliters. Details Additional Category Tags: Developing & Processing, Developing & Processing Supplies, Graduates Category: Photography Manufacturer Catalog Number: 09-0055 Product Manufacturer: Photographers' Formulary Subcategory: Darkroom Equipment