A catalogue of pictures [electronic resource] : Copied or Multiplied (for Sale) By a chymical and mechanical process; exhibited with The capital originals from which they have been taken, by the Polygraphic Society, At their Rooms, in Pall-Mall, being their eighth exhibition: opened the 4th of April, 1792, As specimens of what the society engage to deliver to Purchasers. - Admittance one Shilling. To continue till further notice, from eleven in the morning till six in the evening. - All Orders addressed by Letter to the Polygraphic Society, as above, will be executed in the same Manner as if the Parties were present. N. B. Catalogues gratis.