GB_Amateur

That's the old way and some areas probably still have that. The new way is like yours -- optical fiber carries the signal all the way into the building (home, office, etc.). The fiber cable between (neighborhood) junction box to private residence does have a fine wire, the purpose of which is to attach a transmitter so the fiber line can be traced by a detector. But this is only activated for the purpose of utility line location determination -- e.g. when digging/excavation is going to occur and no one wants to cut the line. In my yard, the fiber line is quite shallowly located -- less than about 6 inches (15 cm) deep! I tried to pick up the line with a detector when it wasn't hooked to a transmitter and it did seem I could sense it, not by EMI but just from the presence of the fine wire. Might have been fooling myself, though....

I doubt the VDI would be slightly lower than a dime if they are more/less dime size and made of aluminum.

Recovered after almost 60 years: read here.

More great finds! The 1900-O dime is not common, particularly in higher grades (F-12 and above). I hesitate to give my opinion of the grade as photos typically don't show enough detail, but you can try your hand here.

Unhunted sites are pretty difficult to find. Thanks for the report and well done!

Finding even one silver half dollar is a great day, IMO, let alone two! I find your depth measurements interesting/enlightening. It makes me wonder what my 'hunted out' areas are hiding deep down.... I suspect you are getting in every free moment to detect that location before the inevitable 'development'. Milk it for all it's worth!

That's what mine shows (installed with the latest software update), except for the last line (UVC) which is in the 8000's. I wonder what 'UVC' means. 🤔

Those actually work underwater, i.e. keeping water from entering the ear canal?

I do:

Yep, and there are the various later models (F70, F75+, Teknetics Patriot) which included some but not all of their so-called 'processes'. Pretty much the same detector, just varied features (and prices).

Just a small addition: I think all the F75 models have static all metal. I do find their nomenclature confusing: 'Limited', 'Ltd', 'Special Edition', 'SE', etc. Here's the manual for the regular (gold shaft) model after Digital Shielding Technology (DST) was added, but in addition I have a pre-DST manual for the gold model and it also shows static all metal:

You just named three items I've yet to find, too. In fact I haven't gotten any thimbles, regardless of the material makeup, and my only halves are clad. You must have a good spot there, and unless it's on the beach or a location soon to be developed, it'll still be there waiting for you after the storm passes. Maybe some more firsts still there!

The Fisher Gold Bug Pro (twin sister of the F19) has a special place in my memory (and detector closet) since it re-introduced me to detecting in 2015 after ~35 year hiatus. Last weekend my neighbor saw me coming back from a 'hunt' and asked me to find his property line stake. He showed me its approximate location which was close to both a metal light pole and metal utility box cover. Out comes the Fisher F75 with tiny 4"x6" concentric coil -- the right tool for the job. I quickly located two screamer hits, one being the desired target. First Texas gets a lot of negative criticism here, some of it justified and other just sharks in a feeding frenzy after seeing blood in the water. As others (e.g. El Nino77 recently) have noted, we can be thankful for some great products they've produced over the years that are still getting the job done. Your F19 is certainly one of those.

Excellent story to accompany your nice finds. Coincidentally I've visited your grandfather's hometown 2 or 3 times for meetings and tests at the Columbia Scientific Balloon Facility. I recall it can get quite uncomfortable (as in hot+humid) in the summer months. I see why you want to get out now before that starts!

https://www.tekneticsdirect.com/blog/the-tek-files thanks. These are some of the files that used to be on the (old) FisherLabs webpage, but not all of them. Hopefully the others will re-appear....