pinnakoopia välis-/sisehälving, mis on negatiivipõhipinna sise-/välisdefekti tagajärg, millest see koopia tehti
outward (very rarely inward) defect on positive replica speciment, which is the result of inward (outward) defect on the negative mother, or master surface, from which that replica was made
Any negative defect will have a cross-sectional shape which is the exact top-potom inversion of the shape of the corresponding defect on the negative mother surface.
