WWI Liberty Loan Bonds Advertising Pinbacks - OLD 1910s Patriotic Propaganda LOT

Description

From the late 1910s, a group of 4 pinbacks promoting Liberty Bonds to fund World War One.  The pin on the right has significant wear, but I hate to throw it away.  The rest are looking good for being 110 years old.  The little "dangler" saying "2nd War Fund" is likely from from WWII.  It is not metal, and the tiny hole for putting it on a pin is torn.  The backs of the pins are also nice and really reveal the age.  The white spot you see on each pin is a light reflection. Thanks for looking!