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| The original Dr Pepper Pepsin Bitters formula handwritten in the Morrison's Old Corner Drug Store ledger book titled Castles Formulas; image credit on full record. |
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| Example of formula and notes found in the Morrison's Old Corner Drug Store Castles Formulas ledger book; image credit on full record. |
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| Sampling of receipts found in the Morrison's Old Corner Drug Store Castles Formulas ledger book; image credit on full record. |
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| Notes from an ointment formula in the Morrison's Old Corner Drug Store Castles Formulas ledger book; image credit on full record. |
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| Notes from the Morrison's Old Corner Drug Store Castles Formulas ledger book referring to Dr Pepper Pepsin Bitters; image credit on full record. |
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| Cover detail of the Castles Formulas ledger book containing the original Dr Pepper Pepsin Bitters formula; image credit on full record. |
