Sharla
Finding lost objects, especially small ones is difficult because, chart or no chart you can look in the right place bu stillt miss them.
You never need to post the chart, simply post the time, date and place. Signs and houses also give directions...N, S, E, W so you could try that, in conjunction with high medium or low or other in qualities. You might also try using the third as your phone is a means of communication.
I think the chart was giving me some good clues though, as i ended up finding it in a chair in the front room on the lower level floor of the house, under a cushion my son had been sat on the whole time, and my son is the only person i live with.
If you want to look yourself, here's the details...
12th Sept, 19.34pm, nuneaton, england, uk