Invaluable

AUGUST 26, 2024

From the intricate designs and beautiful functionality of ancient astrolabes to the ornate craftsmanship of Renaissance telescopes, and the sleek modernism of personal cameras, the evolution of scientific instruments has provided a fascinating meeting point between aesthetic and functional precision through the ages.

Age 98

Age Antiques and Decorative Arts Function Maker/Artist 98

Invaluable

OCTOBER 9, 2024

Once considered prized pieces of art, cartography today holds a more functional and utilitarian place in society. Embellished with copperplate engravings, renaissance cartographer and Benedictine monk, Donnus Nicolaus, reproduced 27 maps based on Ptolemy’s descriptions. Ptolemaeus, Claudius.

Collectibles 96

Collectibles Engravings Maker/Artist Prints 96

Artifactual History Appraisal

MAY 6, 2020

Silverplate is often thicker and heavier than sterling Age Style (for example, Nouveau is valuable, Rococo Revival less so) Famous makers (such as Tiffany) or retailed from a famous shop (for example Liberty or Cartier) Weight in troy ounces (this is different from regular ounces. Note the thickness of hollowware. Do you see kiln marks?

Appraiser/appraisal 130

Appraiser/appraisal Antiques and Decorative Arts Photography Glass 130

Penrose Appraisals

FEBRUARY 8, 2024

If it is intended as a functional object, does it comfortably do what it is supposed to? Speaking of ornament, the way in which an object is engraved, or painted, or carved, or any of a hundred other ways ornament has been used can make a tremendous difference in the overall quality of the item. Is this the right form?

Collectibles 52

Collectibles Material Maker/Artist Provenance 52