Vintage Metal Box for Index Cards with Latch and Inside Divider / Holder

Under the latch states Presto Lock Co

Holder inside sliding as should

No key yet opened

Hinge and latch are working as should

Exterior dimensions are 7-7/8" wide x 11" long x 3-3/4" tall not including latch or handle

Index cards appear to be 7" x 3-1/2"

Item DP 4287 shelf