@LorineMS tweets related to: Paper, Genealogy, Family History, Acidity, Testing

The pH testing pen is a simple tool to easily and instantly spot test books, documents, paper and card for acidity.
Olive Tree Genealogy Twitter

RT @FamilyTreeFolk: Use a pH testing pen to check acidity in your documents and photo paper etc http://t.co/b2ctbqHKt2 #genealogy #familyhistory #archiving

Olive Tree Genealogy Twitter

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