[D9248AAR], Letter from Alfred Ord Tate to Thomas Alva Edison, 1892
https://edisondigital.rutgers.edu/document/D9248AAR
Transcription
Chemicals Caustic Soda Price varies from $3.65 to $3.85 per hundred pounds the brand is Allhusens, made at Newscastle on Tyne, the grade is 77% Anhydrous containing 98 1/2% hydrated oxide of soda He buys it from Wing & Evans 54 William St New York