These would look great on a stake side TT. One set is yellow and the other is red.
Jay,
Can you tell if they depend on total internal reflection or is there a reflective material behind the glass?
Neil
Neil, I don't believe there is any reflective material behind the glass.
Seeing it in your hand Jay gives a good perspective of size. I figured they were much smaller
Gary, I was hoping people would see the size without posting a measurement by holding it my hand for the photo. Actually I was thinking of using these coins at some point to give an accessory a size reference. GRIN!
Notice how the flash lights the unit up.
I found these gag coins in a coin shop 30 or so years ago.
Here's another style with cast body,"FEDERAL 95"
Bob
Ha! You had me going there Jay until I scrolled down to the second pic. I just couldn't make spatial sense of the scale...grin..
Original Patent
Henri Chretien
St Cloud, France
Autocollimating Reflector and Application
to Optical Signalling and Night Advertising
Patent number: 1706218
Filing date: Nov 17, 1924
Issue date: Mar 19, 1929
http://tinyurl.com/cjtrsoo
Reissue Patent
Henri Chretien
St Cloud, France
Assignor to Libbey-Cataphote Corp.
Toledo, Ohio
Autocollimating Reflector and Application
to Optical Signalling and Night Advertising
Patent number: RE19070
Filing date: Nov 17, 1924
Issue date: Feb 6, 1934
http://tinyurl.com/blvvusb
Regards
Art