Vintage lot of popular 6 B/W PHOTOGRAPHS JAPAN on hardboard mat

6 Vintage Black/White Silver Acetate Japan Photographs. Black/White Photographs are attached to a Hardboard mat, as originally made.
The photographs area measure approximately 7" x popular 9". With the hardboard mat measurements approximately 9-1/2" x 11-1/2".

Titled Photographs below with "Japan" stated. On the corner states, The Philadelphia Museum.

Reeling Silk
Going To Market
Preparing Tea, Pan Firing
Feeding Silkworms
Separating Rice from the Straw
Weaving,
Back of photograph states the description of the task performed.

These are Vintage Photographs. The hardboard mats have some rubs wear on the outer edges.