Recently been working to pare back my 5 oz class hallmark collection to single examples; duplicates that remain in the photo below are ingots with consecutive serial numbering. Other hallmark repeats are variants of casting or stamping. Academy for instance produced a number of shapes and hallmark configurations in the 5 oz class.
Neat to see these all together, let me know if anyone has any 5 oz class "A" examples that are not represented. In my 5 oz class registry, there are no "A" hallmarks available that are not included below except for Arizona Assay Office. My Arizona Assay Office ingot collection will be a photo by itself to come.
Look for alphabetical box dumps over the next few weeks.