9 Sterling Service Pins from 1918-1958 Unusual Blue Lapis? Cube on 5 Can you ID?

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$345.0
condition
Used

9 Sterling Service Pins from 1918-1958 Unusual Blue Lapis? Cube on 5 -Can you ID? Condition is "Used".

Range in size from.3/8” x .25” to .5/8” x .5/8”

(Can any Ebayers identify which organization these are from) Thanks

I could not find any of them on internet.

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HT4