Stuff from different decades just to confuse whomever finds it. Like get a Five Stairsteps album from a used record store, a Blue Oyster Cult 8 track, a Tecmo Bowl cartridge, a Boyz II Men CD, and a newspaper from yesterday.
I hate to be a killjoy, but it’ll clearly be a single deposit layer dated to on or after the latest date-able item. The fill will all be the same and its own distinct layer against the rest of the area. If you have a long enough time to keep it open, want to dig more, and have different fills, you might be able to accomplish something, but the different fill materials would likely have no real match in the surrounding still making it obvious.
Stuff from different decades just to confuse whomever finds it. Like get a Five Stairsteps album from a used record store, a Blue Oyster Cult 8 track, a Tecmo Bowl cartridge, a Boyz II Men CD, and a newspaper from yesterday.
“This guy… had good taste.”
I hate to be a killjoy, but it’ll clearly be a single deposit layer dated to on or after the latest date-able item. The fill will all be the same and its own distinct layer against the rest of the area. If you have a long enough time to keep it open, want to dig more, and have different fills, you might be able to accomplish something, but the different fill materials would likely have no real match in the surrounding still making it obvious.