1326: a ship's log (counts off length of line to a
float tossed into the water)
1328: a sounding apparatus? For maritime depth measurement, in
conjunction with a weight and line.
The cover looks noncorroding in ocean spray...
1329: some kind of tax token, only the historical archives
of the state of Illinois can tell us how it was used.
1330: an AC voltmeter, probably to monitor generator
output. Note the scale is very nonlinear near zero volts,
it might use a copper oxide rectifier. 1940s or earlier.
This has a mirrored scale, one lines up the needle with
its reflection for accurate reading (to eliminate parallax).
Yeah, that's a screw log. I think they also called them "taffrail logs," but
the original type of taffrail log (which I used to make out of Honduras
mahogany in small quantities and sell to the wooden-boat crowd, back in the
'70s) was just a flat board attached to a knotted line. The board had a peg
in it that would pull out when you jerked the line, which allowed the board
to plane its way back to the boat when you pulled the line.
Those original logs date back centuries. The screw logs came in sometime in
the 19th century, I think.
the mechanism of operation is quite different. your mahogany log
should have been pie slice shaped with a weighted edge. it would sit
vertical in the water so that it's resistance kept it pretty well
motionless and would pull a knotted line overboard. an elegantly
simple piece of technology.
1326: Well log
1329: Sales tax token from the days when sales taxes were less than 1%, so
you needed something worth less than 1 cent. (Funny how the government
never seems to do with less, isn't it).
1330: Old voltmeter
If you're going to be dumb, you better be tough
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