Publication Origin : Petrograd

• Ch. M. Fræhnii Opusculorum postumorum pars ... Fraehn, C. M. ; Dorn, Bernhard (Ed.) Petropoli : Acad. Imperial. Scientiarum, 1855

• Ch. M. Fræhnii Opusculorum postumorum pars ... / Ps. 1 : Ch. M. Fræhnii Nova Supplementa Ad Recensionem Numorum Muhamedanorum Academiae Imp. Scient. Petropolitanae Fraehn, C. M. ; Dorn, Bernhard (Ed.) Petropoli : Acad. Imperial. Scientiarum, 1855

• Ch. M. Fræhnii Opusculorum postumorum pars ... / Ps. 2 : Adnotationes In Varia Opera Numismatica Continens Fraehn, C. M. ; Dorn, Bernhard (Ed.) Petropoli : Eggers [u.a.], 1877