I just received a 705, and have been testing it outside against a set of old British coins laid on the ground. I first did the auto ground balance. I'm a bit puzzled by a couple of results, shown in the table below:
So, the two bronze coins show very different ID values (28 and 42) ... is this a measurement error on my part, or a usual variation? I'm also surprised the silver florin IDs the same as the bronze penny - again, maybe my measurement error?
Comments on these measurements would be welcome
- 1941 Farthing (Bronze) ID = 28
- 1885 Florin (Silver) ID = 42
- 1797 Cartwheel Penny (Copper) ID = 44/46
- 1965 Penny (Bronze) ID = 42
- 1945 Threepence (Brass) ID = 34/36
- Gold Ring ID = 18
- Iron Nail ID = -6
So, the two bronze coins show very different ID values (28 and 42) ... is this a measurement error on my part, or a usual variation? I'm also surprised the silver florin IDs the same as the bronze penny - again, maybe my measurement error?
Comments on these measurements would be welcome