Signature |
Maker |
Instruments |
Comments |
Location |
References |
RIGGS AND BROTHER |
USA, c.1845, NIM |
Marine Compasses = MYS, D.(1970); Sextants = MYS, D.(1970). |
company founded in 1818 by William H.C. Riggs; the firm was also a retailer of navigating instruments; the Philadelphia Maritime Museum has a sextant made by Heather but bearing their name. |
310 Market Street, Philadelphia Pa. |
USNM; Moskowitz 101; RSW. |
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