Ktemaque Lodge #15 has issues several items to help fund their Council Endowment Fund.
This is the Metal flap with a YEL Endowment Fund, they came as part of a set with the flaps which were numbered 1-100.
The stats for this one are:
M1 SIL – GRN RED SIL FDL; YEL Endowment Fund
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“An unlimited power to tax involves, necessarily, a power to destroy; because there is a limit beyond which no institution and no property can bear taxation.” –John Marshall, McCullough v. Maryland, 1819