vintage enamelware trays in three different sizes, white w/ black

Lot of old graniteware utility trays, heavy steel with porcelain enamel, white with dark banding borders, most black, but one a cobalt blue. This is a lot of 8, in assorted sizes.

One tray measures 17" x 11 1/2" - four trays measure 13 1/2" x 9 3/4" - three trays measure 11" x 8 1/2". All of these show some wear and scratching, very little rust.