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print. engraving, stipple and line. Alexr. Aubert, Esqr, F.R.S./ Painted by Drummond; Engraved by Chapman [London] Published by J. Sewell, Cornhill, Novr. 1st.1798. 22x14cm.,platemark 16.1x11cm., image 10.x7.8cm. oval. Plate headed: EUROPEAN MAGAZINE. - Portrait, Bust to R, in oval Aubert Alexander 1730-1805, astronomer. Drummond Samuel 1765-1844. Sewell J. fl.1798. Chapman John fl.1792-1823.