[Reily]

https://www.cop.senate.gov/about/historic-spaces/washington-lays-capitol-cornerstone.htm#:~:text=On%20September%2018%2C%201793%2C%20President%20George%20Washington%20laid,and%20a%20delegation%20of%20Masons%20in%20full%20regalia.

so you think the cornerstone was a silver plate
Cornerstone = a stone!... Again a stone!

Who tells you this crap?

[Golden Eagle]

Obviously all I did was copy and paste from your own link LOL. Here’s some more from it for you to trip out on.

“The plate was handed to Washington, who stepped down into the foundation trench, laid the plate on the ground, and lowered the cornerstone onto it.”