Good afternoon, Ron,

Thank you for contacting Mearto with your appraisal inquiry.
I wonder if this might also be brass and not copper? Is there a manufacturer's name on the back or bottom? If you find one, please let me know and I will re-assess and revise my valuation as necessary.

Based on the photographs and information provided, and subject to examination, this is:

The Trump Taj Mahal copper or brass wall-mounted lobby mailbox
Late 20th Century
Bears official triangular USPS guideline sticker upper left corner
36 inches high, 22 inches wide, 18 inches deep
PROVENANCE: Trump Taj Mahal, Atlantic City, NJ
$ 300-500*
*represents a fair-market value for auction purposes; retail or asking price may vary. The following recent auction sales of similar or comparable works have been used to establish a value for your item:
($150) https://www.invaluable.com/auction-lot/7-brass-us-mailbox-column-cabinet-47d43f98ba
($1,200) https://www.invaluable.com/auction-lot/large-early-20th-c.-canadian-brass-mail-box-cut-9b847c4ad9
($375)

Please let us know if you have additional items to appraise, and thank you for using Mearto.