A beautiful and extremely rare 18th century two figure copperplate engraving by Marcus Elieser Bloch, illustrating Balistes Tomentosus (Figure 1, right) with its unique textured dermal form and Balistes Biaculeatus (Figure 2, left) with its long pelvic spines. Beautifully colored by hand, this wonderful old folio plate beautifully balances 18th century scientific accuracy with marine beauty.Perfect for rare collectors with an interest in 18th century natural history, rare books or ichthyology.