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Signature	Maker	Instruments	Comments	Location	References
POWELL AND LEALAND	England, fl.1842-99, OIM	made many fine microscopes; made improvements in microscopes.	Hugh Powell and P. Lealand.	4 Seymour Place = 4 Euston Square = 170 Euston Road, London.	G.L'E. Turner 1, 4, 23, 24; Young 1; Moskowitz 122; USNM; Coffeen 14; RSW.
POWELL AND LEALAND	England, fl.1842-99, OIM	made many fine microscopes; made improvements in microscopes.	Hugh Powell and P. Lealand.	4 Seymour Place = 4 Euston Square = 170 Euston Road, London.	G.L'E. Turner 1, 4, 23, 24; Young 1; Moskowitz 122; USNM; Coffeen 14; RSW.

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