WOOT! New country Guyana added to the collection. It's been quite some time since I've been able to cross a country from the Americas off my list, so quite enthusiastic to get one now. (Last one was Colombia back in 2011). Postcard is from the capital of Georgetown and shows Saint George's Anglican Cathedral on Guyana's tentative World Heritage List. It was built in 1889–1894 and, measuring 43.5 metres, is one of the world's tallest wooden buildings.
Stamp from a 1997 set of 24 commemorating George Washington on the 200th anniversary of his death. Stamp seems to depict George and the Founding Fathers, maybe signing the Declaration of Independence.